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Experiments

Best 7 A/B Testing & Experimentation Tools for Healthcare

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Picking an A/B testing tool is already complicated.

Picking one for healthcare means you also have to answer questions like: Where does patient data go? Does this vendor sign a BAA? Can we self-host this if we need to? Most general-purpose experimentation platforms weren't built with those questions in mind — and a few that claim HIPAA compliance don't have the documentation to back it up.

This guide is for engineers, product managers, and data teams at HealthTech companies and healthcare organizations who need to run experiments without putting PHI at risk. We cover seven tools — GrowthBook, Kameleoon, LaunchDarkly, VWO, PostHog, ABsmartly, and Optimizely — and evaluate each one on the things that actually matter in a healthcare context:

  • Deployment model (self-hosted, cloud-only, or private cloud)
  • HIPAA compliance and BAA availability
  • Who the tool is really built for (marketing, engineering, or both)
  • Pricing structure and how costs scale
  • Where the tool falls short for healthcare use cases

Each tool gets a straight breakdown of its strengths, limitations, and the specific questions you should ask before signing anything. No tool is perfect for every team, but by the end you'll have a clear picture of which ones are worth a closer look for your situation — and which ones carry compliance risks you can't afford to ignore.

GrowthBook

Primarily geared towards: Engineering and product teams at HealthTech companies that require full data sovereignty, HIPAA compliance, and self-hosted or warehouse-native experimentation infrastructure.

GrowthBook is an open-source, warehouse-native A/B testing and feature flagging platform — and for healthcare teams, that architecture matters in a specific way. Rather than routing experiment data through a third-party server, GrowthBook connects directly to your existing data warehouse or analytics tools, meaning patient data and experiment results stay in your controlled environment.

The platform is HIPAA-compliant, SOC 2 Type II certified, and supports Business Associate Agreements (BAAs) for covered entities.

For teams that cannot send PHI or PII to a third-party SaaS vendor, the Docker-based, deployable in hours self-hosted deployment option is a direct path to compliance without sacrificing experimentation capability. Feature flags, experiment analysis, targeting, and statistical reporting are all built into a single unified platform — not bolted on as separate modules or add-ons.

Notable features:

  • Self-hosted deployment: Run GrowthBook entirely on your own infrastructure via Docker. Experiment data never leaves your servers — a hard requirement for many healthcare organizations handling PHI.
  • Warehouse-native architecture: Connect directly to your existing SQL data warehouse or analytics tools. Experiment analysis runs in your environment — no new data pipelines required.
  • Feature flags with release controls: Supports gradual rollouts, targeted user group releases, and instant kill switches, giving healthcare engineering teams safe deployment controls for patient-facing features and clinical workflow tools.
  • Multiple statistical frameworks: Bayesian, frequentist, and sequential testing are all supported, along with CUPED and post-stratification variance reduction — giving data teams the statistical rigor needed for evidence-based product decisions.
  • Full-stack experimentation: Server-side, client-side, mobile, and edge experiments are all supported through 24+ SDKs (JavaScript, Python, React, Swift, Go, and more), a visual no-code editor, and URL redirect testing.
  • Auditable open-source codebase: The full codebase is publicly available on GitHub, which supports vendor security reviews common in healthcare procurement.

Pricing model: GrowthBook offers a free cloud tier and a per-seat paid model with unlimited tests and unlimited traffic. An Enterprise plan adds SSO for both cloud and self-hosted deployments. Self-hosting carries no software licensing cost — you're responsible for your own infrastructure.

Starter tier: A free cloud account is available with no credit card required. Specific seat and feature limits on the free tier should be confirmed at growthbook.io/pricing before committing.

Key points:

  • The warehouse-native architecture is the core technical differentiator for healthcare: PHI never passes through GrowthBook's infrastructure, even when using the cloud product — because analysis runs against your own data warehouse, not a third-party server.
  • Self-hosting via Docker gives compliance-sensitive organizations complete data sovereignty, which is often a non-negotiable requirement for HIPAA-covered entities and their business associates.
  • BAA support means GrowthBook can serve as a compliant vendor partner for covered entities — not just a tool that claims to be "HIPAA-friendly."
  • Alto Pharmacy has publicly cited GrowthBook's self-hosted platform as enabling better security control and experimentation flexibility compared to their previous vendor: "We moved from a costly, inflexible solution to GrowthBook's secure, self-hosted platform — gaining better control, enhanced security and the flexibility we needed to drive experimentation at scale." — Travis White, Senior Software Engineer, Alto Pharmacy.
  • The open-source codebase is fully auditable, which reduces vendor risk for healthcare security teams conducting third-party reviews. Unlike closed platforms where statistical models are black-box, every calculation GrowthBook runs can be inspected, reproduced, and verified against your own data warehouse.

Kameleoon

Primarily geared towards: Enterprise marketing, growth, and product teams in healthcare needing a combined CRO, personalization, and experimentation platform with HIPAA compliance documentation.

Kameleoon is an enterprise A/B testing and personalization platform that positions itself explicitly for healthcare organizations, claiming it "satisfies the toughest procurement requirements with advanced security policies and full HIPAA compliance." It offers both web experimentation (visual editor, multivariate testing) and feature experimentation in a single platform — a combination that lets marketing and engineering teams work from the same tool.

Kameleoon is cloud-only, meaning all data flows through Kameleoon's managed infrastructure rather than your own environment.

Notable features:

  • HIPAA compliance with advanced security policies: Kameleoon explicitly markets to healthcare procurement teams and states HIPAA compliance — useful if your organization needs a vendor that can clear compliance reviews. BAA availability should be confirmed directly with Kameleoon before contract.
  • Kameleoon Hybrid™ server-side experimentation: A capability that lets non-technical teams run server-side experiments without heavy developer involvement — relevant for testing scheduling flows, care pathways, or backend logic.
  • Web and feature experimentation in one platform: Kameleoon claims to be the only optimization platform unifying both web CRO and feature experimentation, which can reduce tool sprawl for teams managing both marketing and product experiments.
  • CDP and data warehouse integration: Supports connections to CDPs and data warehouses for segmentation and personalization — useful for healthcare teams segmenting by patient type, location, or session behavior.
  • Segmentation for patient personalization: Allows segmentation by session source, location, and recent behavior to personalize educational content and care pathways for both anonymous and authenticated users.

Pricing model: Kameleoon uses traffic-based pricing tied to monthly users, with enterprise-level contracts. Advanced capabilities — including some server-side features and dedicated environments — are available as separate add-ons, which can increase total cost as your program scales. Specific pricing is not publicly listed; you'll need to request a quote.

Starter tier: No free tier has been confirmed. Kameleoon appears to be a paid-only platform with no self-serve entry point.

Key points:

  • Cloud-only architecture: Kameleoon has no self-hosted option. A private cloud or dedicated environment is available but at additional cost — a meaningful limitation for healthcare organizations with strict data residency requirements or PHI handling requirements.
  • Marketing and CRO orientation: Kameleoon is primarily designed for growth and marketing teams doing personalization and conversion optimization. Teams with heavy engineering-led experimentation programs may find the developer tooling less mature than developer-first platforms.
  • Opaque, add-on-heavy pricing: Traffic-based pricing with frequent add-ons for support, onboarding, and advanced modules makes total cost difficult to predict upfront — worth modeling carefully against your expected traffic and feature needs before signing.
  • Setup complexity: Kameleoon's enterprise onboarding is typically measured in weeks to months rather than hours, which matters if you need to move quickly or have limited implementation resources.
  • HIPAA claims are vendor-stated: Kameleoon's HIPAA compliance positioning is based on their own marketing language. No independent third-party validation was found in available research — verify compliance documentation and BAA terms directly with their team before relying on it for procurement.

LaunchDarkly

Primarily geared towards: Engineering and DevOps teams at mid-to-large enterprises that need enterprise-grade feature flag management with experimentation as a secondary capability.

LaunchDarkly is the market leader in enterprise feature management, built around controlled feature releases and progressive delivery. Its experimentation capabilities are real and statistically rigorous, but they're positioned as a paid add-on layered on top of the core feature flagging product rather than a first-class offering. For healthcare engineering teams whose primary need is safe, controlled rollouts of new features — think gradually releasing a new patient portal interface or EHR module — LaunchDarkly is a strong fit.

Teams looking to run a high-volume experimentation program should factor in the additional cost and architectural constraints before committing.

Notable features:

  • HIPAA-eligible with BAA availability: LaunchDarkly is one of a relatively small number of tools that signs Business Associate Agreements, making it eligible for use in healthcare environments where PHI may be involved. Verify current BAA terms and which plan tiers qualify before committing.
  • Flag-native experimentation: Experiments are built directly on top of feature flags, so engineering teams can test any feature — server-side logic, UI changes, AI-powered features — without separate tooling or redeployments.
  • Statistical method flexibility: Supports Bayesian, frequentist, and sequential testing with CUPED, giving data teams meaningful options for how they interpret results.
  • Multi-armed bandits and real-time monitoring: Traffic can be shifted dynamically to winning variants, which is useful when minimizing exposure to underperforming variants is a priority.
  • Audience segmentation: Results can be sliced by device, geography, cohort, or custom attributes — relevant for analyzing outcomes across different patient or user populations.
  • Data warehouse export: Experiment data can be exported for custom analysis, though warehouse-native experimentation is currently limited to Snowflake and requires elevated account permissions.

Pricing model: Pricing is based on Monthly Active Users (MAUs), seat count, and service connections. Experimentation is a paid add-on and is not included in base feature flag pricing — verify current tier structure and costs directly on LaunchDarkly's pricing page before evaluating total cost of ownership.

Starter tier: LaunchDarkly offers a free trial but does not appear to have a permanent free tier for production use. Confirm current terms before planning around it.

Key points:

  • Cloud-only architecture: LaunchDarkly has no full self-hosting option. For healthcare organizations with strict data residency requirements or the need to keep PHI entirely within their own infrastructure, this is a structural limitation that a BAA alone may not resolve.
  • Experimentation is an add-on, not a core product: Teams evaluating LaunchDarkly for both feature management and A/B testing should budget for the experimentation add-on separately — it's not bundled with the base plan.
  • MAU-based pricing scales with traffic: As patient-facing usage grows, costs can become difficult to predict. This is worth modeling carefully for healthcare applications with variable or seasonal traffic patterns.
  • Black-box stats engine: LaunchDarkly does not expose the underlying statistical calculations behind its experiment results. If your team or a regulator ever needed to verify how a result was computed — or re-run the analysis — that is not possible with LaunchDarkly's closed stats engine.
  • Warehouse-native experimentation is limited: Only Snowflake is currently supported for warehouse-native analysis, and setup requires high-level account permissions — teams using BigQuery, Redshift, or other warehouses will need to rely on data exports instead.

For a detailed comparison, see GrowthBook vs LaunchDarkly.

VWO

Primarily geared towards: SMB healthcare marketing and CRO teams optimizing patient-facing web properties without engineering support.

VWO (Visual Website Optimizer) is a web experimentation and conversion rate optimization platform built around a no-code visual editor, making it accessible to marketing and UX teams who need to run A/B tests without developer involvement. It's best understood as a CRO tool first — designed for optimizing web conversion flows like appointment booking pages and health plan landing pages rather than full-stack product experimentation.

VWO can be configured for HIPAA compliance, but this is not the default state, which is a meaningful distinction for healthcare buyers who handle PHI.

Notable features:

  • Visual no-code editor: Lets marketers create and launch A/B tests directly in the browser without writing code — practical for healthcare marketing teams without dedicated engineering resources.
  • A/B and multivariate testing: Supports standard web-based A/B and multivariate tests, primarily targeting client-side conversion optimization use cases.
  • Frequentist statistical engine: Uses a frequentist approach with a proprietary implementation, providing statistically grounded results, though the methodology is less transparent than open or warehouse-native alternatives.
  • Geo and device targeting: Supports basic audience segmentation by geography and device type, useful for regionally targeted healthcare campaigns or device-specific UX tests.
  • Configurable HIPAA compliance: Privacy controls and HIPAA-compatible configurations are available, but preventing PII/PHI transfer requires deliberate setup — it is not enabled by default.

Pricing model: VWO uses a usage-based pricing model tied to monthly active users (MAU), with modular add-ons for additional capabilities. Overage fees apply when annual user caps are exceeded, which can significantly increase costs for higher-traffic healthcare sites.

Starter tier: VWO does not appear to offer a free tier. Pricing is paid from the entry level, though specific current plan names and prices should be verified directly on VWO's pricing page.

Key points:

  • Cloud-only deployment with compliance caveats: VWO runs exclusively on Google Cloud Platform and cannot be self-hosted. For healthcare organizations with strict data residency requirements or those handling PHI, this means compliance depends entirely on correct configuration — data does not stay within your own infrastructure by default.
  • Web-only scope limits experimentation breadth: VWO is designed for client-side web testing. Teams that need server-side experiments, backend feature flagging, mobile app testing, or data warehouse integration will find VWO's scope too narrow for a comprehensive experimentation program.
  • SMB-oriented positioning: VWO is characterized as a fit for companies in the 50–200 employee range that prioritize ease of use over technical depth. Larger healthcare organizations or those running complex, multi-surface experiments are likely to outgrow it.
  • Performance overhead: Third-party script loading introduces measurable page latency, which can be a concern for patient-facing web experiences where load time affects conversion and accessibility.
  • Feature flagging requires add-ons: Unlike platforms where feature flags and experimentation are natively integrated, VWO treats feature flagging as a separate, paid add-on rather than a core capability.

PostHog

Primarily geared towards: Digital health product and engineering teams that want a unified analytics and experimentation platform in a single tool.

PostHog is an open-source product analytics platform with A/B testing and feature flagging built in as secondary capabilities. It's designed for teams who want to consolidate their analytics, session recording, and experimentation stack rather than manage multiple vendors. For healthcare teams, PostHog offers both cloud-hosted and self-hosted deployment options, and can sign a Business Associate Agreement (BAA) — though it's worth verifying which plan tier the BAA requires before committing, as this detail isn't consistently documented.

Notable features:

  • HIPAA-compliant deployment paths: PostHog supports self-hosting (keeping all data on your own infrastructure) and offers BAA availability for cloud deployments, giving healthcare teams flexibility in how they manage PHI.
  • A/B and multivariate testing: Supports standard A/B tests and multivariate experiments within the PostHog analytics workflow — useful for iterating on onboarding flows, UX, or feature rollouts.
  • Feature flags: Built-in feature flagging enables controlled rollouts to specific user segments before broad deployment, a practical safeguard for healthcare product releases.
  • Unified platform: Combines product analytics, session recording, and experimentation in one place, which reduces the number of third-party vendor agreements (and BAAs) a healthcare team needs to manage.
  • Open-source codebase: PostHog's code is publicly available, which allows security teams to audit the codebase — a meaningful consideration for healthcare organizations with strict vendor review requirements.

Pricing model: PostHog uses usage-based pricing that scales with event volume and feature flag requests, meaning costs increase as product usage grows. Specific plan names and prices should be verified at PostHog's pricing page, as they were not confirmed in our research.

Starter tier: PostHog offers a free tier with a generous event volume allowance. Verify current limits at posthog.com/pricing before making decisions based on this.

Key points:

  • PostHog is an analytics-first platform — experimentation is a secondary feature, not the core product. Teams running high-velocity or statistically rigorous testing programs may find the capabilities limiting.
  • PostHog does not offer documented support for advanced statistical methods like sequential testing, CUPED, or automated sample ratio mismatch (SRM) detection — capabilities that matter for teams running experiments at scale.
  • Experiment metrics are calculated inside PostHog's own platform rather than directly in your data warehouse, which means your experiment analysis lives separately from your existing data infrastructure. In practice, this means reconciling experiment results with your existing BI tools or data warehouse requires a manual export step — and your source of truth for experiment outcomes is a separate vendor system.
  • Self-hosting PostHog for HIPAA compliance requires running the full PostHog analytics stack on your own infrastructure — a meaningful operational burden compared to lighter-weight self-hosted options.
  • Event-based pricing can become expensive as usage scales, particularly if you're already running a separate analytics pipeline alongside experimentation.

ABsmartly

Primarily geared towards: Engineering-led organizations with strict data residency or infrastructure control requirements.

ABsmartly is a code-driven, API-first experimentation platform built for technical teams that need full control over where their data lives. Its standout capability for healthcare is support for on-premises and private cloud deployment — a relatively rare option among modern SaaS experimentation tools. The platform is designed around engineering workflows, meaning every aspect of experiment configuration, launch, and management requires developer involvement.

Notable features:

  • On-premises and private cloud deployment: ABsmartly can be hosted within your own infrastructure or a dedicated private cloud, which directly addresses data residency and sovereignty requirements common in healthcare environments.
  • Group Sequential Testing (GST) engine: ABsmartly claims their GST approach runs tests 20%–80% faster than traditional fixed-horizon methods — useful for teams that need to reach valid conclusions quickly without inflating false positive rates.
  • Health Check Panel: Includes real-time experiment quality monitoring with sample ratio mismatch detection (via chi-squared test), audience mismatch alerts, and variable conflict detection — important safeguards for teams where experiment integrity is non-negotiable.
  • Interaction detection across concurrent tests: Detects interaction effects across all running experiments, which matters in complex healthcare product environments where multiple simultaneous tests can distort each other's results.
  • Broad SDK coverage: API-first architecture with SDKs designed to integrate into microservices, ML pipelines, and non-web environments — relevant for healthcare organizations with multi-system technical infrastructure.
  • No caps on experiments, users, or goals: Unlimited experiment volume without per-event penalties at the platform level (though pricing is event-based — see below).

Pricing model: ABsmartly uses event-based enterprise pricing. Pricing is not publicly listed on their website, but third-party sources estimate a starting price of approximately $60,000 per year. Event-based pricing means costs scale with experiment volume, which can create friction for teams trying to run experiments broadly across their product.

Starter tier: ABsmartly does not offer a free tier or publicly available trial.

Key points:

  • ABsmartly's on-premises and private cloud deployment is its clearest differentiator for healthcare — but the research available does not confirm explicit HIPAA compliance claims or BAA availability, which is a critical gap to verify directly with ABsmartly before committing.
  • The platform is engineering-only by design: there is no visual editor, no no-code workflow, and no meaningful path for non-technical product or marketing teams to run experiments without developer support.
  • ABsmartly does not support warehouse-native analysis — experiment data is managed within ABsmartly's own platform rather than analyzed against data already in your data warehouse.
  • Unlike open-source tools, ABsmartly's codebase is not publicly available — which means your security team cannot inspect how data is handled internally. For healthcare organizations that require third-party code reviews as part of vendor onboarding, this is a meaningful gap.
  • The estimated ~$60K+ annual starting price and absence of a free tier make it a significant commitment relative to tools that offer self-hosted or freemium options.

For a detailed comparison, see GrowthBook vs ABsmartly.

Optimizely

Primarily geared towards: Enterprise marketing and CRO teams running visual and content experiments at scale.

Optimizely is a mature, enterprise-grade experimentation and personalization platform with a long market history. It's built primarily for marketing-led experimentation — think CRO teams optimizing landing pages, patient portal messaging, and appointment booking flows through a visual editor rather than code. The platform has evolved through multiple acquisitions and now covers A/B testing, multivariate testing, feature flagging, and content management, though these are offered as separate modules rather than a unified product.

Notable features:

  • Visual experiment editor: A no-code interface for making UI and content changes, enabling marketing teams to run web experiments without engineering involvement.
  • Stats Engine with SRM detection: Automatically monitors live experiments for sample ratio mismatches and flags data quality issues — meaningful for healthcare teams where experiment integrity directly affects patient-facing decisions.
  • Sequential testing support: Allows teams to evaluate results during a test without inflating false positive rates, which matters when experiments may need to be stopped early for operational or safety reasons.
  • Multivariate testing: Supports testing multiple variables simultaneously across web surfaces, primarily suited to content and UI experimentation.
  • Modular product architecture: Feature flagging and experimentation are offered as separate products, giving enterprise buyers flexibility in what they license — though this also means additional cost and integration overhead.

Pricing model: Optimizely uses traffic-based (MAU) pricing with modular add-ons, and is generally positioned at the higher end of the market. Implementation is described as requiring weeks to months and often a dedicated support team, meaning total cost of ownership extends well beyond licensing fees.

Starter tier: Optimizely does not offer a free tier.

Key points:

  • Cloud-only architecture is a meaningful constraint for healthcare: Optimizely is a SaaS-only platform with no self-hosted deployment option. For healthcare organizations that need to keep PHI or PII within their own infrastructure — whether for HIPAA compliance, data residency requirements, or internal policy — this is a structural limitation that cannot be worked around.
  • HIPAA compliance posture is unconfirmed: The research available does not confirm whether Optimizely offers HIPAA compliance, BAA agreements, or specific security certifications relevant to healthcare. Healthcare buyers should verify this directly with Optimizely before evaluating the platform for any patient-data-adjacent use cases.
  • Traffic-based pricing penalizes scale: For healthcare organizations running high-volume experiments across patient-facing digital properties, MAU-based pricing can become a significant cost driver — and may create incentives to run fewer experiments rather than build a broad experimentation culture.
  • Best fit is marketing, not engineering or product: Optimizely's tooling is optimized for visual, client-side, and content experiments. Healthcare engineering or product teams looking for a developer-first, warehouse-native, or SDK-driven experimentation model will find the platform less aligned with how they work.
  • Setup investment is substantial: The weeks-to-months implementation timeline and need for dedicated operational support make Optimizely a significant commitment — one that may be harder to justify for healthcare organizations that need to move carefully on vendor relationships and data agreements.

Architecture first, features second: what the compliance gap reveals about these seven tools

Side-by-side comparison: compliance, deployment, and use case fit

Tool Deployment BAA Available Best Fit
GrowthBook Self-hosted, Cloud ✅ Yes Engineering & product teams needing data sovereignty
Kameleoon Cloud-only (private cloud add-on) ⚠️ Verify directly Marketing & CRO teams, enterprise
LaunchDarkly Cloud-only ✅ Yes (verify tier) Engineering teams prioritizing feature flag management
VWO Cloud-only (GCP) ⚠️ Requires configuration SMB marketing & CRO teams
PostHog Self-hosted, Cloud ✅ Yes (verify tier) Teams wanting unified analytics + experimentation
ABsmartly On-premises, Private cloud ⚠️ Unconfirmed Engineering-only teams with strict data residency needs
Optimizely Cloud-only ⚠️ Unconfirmed Enterprise marketing & CRO teams

The two dividing lines that narrow your shortlist before features matter

The clearest dividing line across these seven tools isn't features — it's architecture. Most of the tools reviewed here are cloud-only, which means your compliance posture depends entirely on vendor agreements and correct configuration rather than where data physically lives. For healthcare organizations where PHI is in scope, that distinction matters more than any feature comparison.

Before you evaluate capabilities, settle the deployment question: can your organization accept a cloud-only vendor with a BAA, or do you need data to stay within your own infrastructure?

The second dividing line is who on your team actually runs experiments. Several tools in this comparison are built primarily for marketing and CRO workflows — visual editors, no-code interfaces, and conversion-focused metrics. Others are built for engineering teams running server-side, SDK-driven experiments against backend logic and data warehouse metrics. These two categories have almost no overlap in practice, and choosing the wrong one means your team will either be blocked waiting on developers or blocked by a platform that can't reach the systems you need to test.

Once you've answered those two questions — deployment model and team fit — the feature comparison becomes much more tractable. A cloud-only tool with a BAA is a reasonable choice for a marketing team running appointment booking experiments. It's a much harder sell for an engineering team that needs to test EHR integrations, clinical decision support logic, or patient-facing AI features where PHI is in scope and auditability matters.

Our recommendation: GrowthBook as the strongest starting point for healthcare experimentation

For most healthcare engineering and product teams evaluating best A/B testing and experimentation tools for healthcare, GrowthBook is the strongest starting point — not because it's the only option, but because its architecture directly addresses the constraints that make healthcare experimentation hard.

The warehouse-native model means PHI never passes through a third-party vendor's infrastructure, even when using the cloud product. Self-hosting via Docker gives organizations that need complete data sovereignty a path to compliance that doesn't require years of procurement negotiation. BAA support is confirmed and documented. The open-source codebase is auditable by your security team. And the unified platform — feature flags, experiment analysis, targeting, and statistical reporting all in one place — means you're not managing separate vendor agreements for each capability.

For teams that are primarily running marketing experiments on patient-facing web properties and don't handle PHI in their experimentation layer, a tool like Kameleoon or PostHog may be a reasonable fit depending on your existing stack. For engineering-only teams with extreme data residency requirements and the budget to match, ABsmartly's on-premises deployment is worth evaluating — with the caveat that HIPAA compliance and BAA availability need to be verified directly.

The tools to approach most carefully are the cloud-only platforms with unconfirmed HIPAA postures. Running experiments is valuable. Running experiments on a platform that turns out not to sign BAAs — after you've already integrated it into a patient-facing product — is a compliance problem that's expensive to unwind.

Where to start depending on where your program actually is

Early-stage teams that haven't yet committed to an experimentation platform should start with a free GrowthBook account and connect it to their existing data warehouse. The setup takes hours, not weeks, and you'll immediately have a clear picture of whether the warehouse-native architecture fits your data infrastructure before making any procurement decisions.

Teams already running feature flags through another provider should evaluate whether their current tool signs a BAA and whether experiment analysis stays within their own infrastructure. If the answer to either question is no, that's the conversation to have with your security and compliance team before the next product launch — not after.

For organizations already running experiments at scale and evaluating whether their current platform can grow with them, the questions worth asking are: Can you reproduce any result your platform gives you from your own data? Can your security team audit the statistical methodology? Does your pricing model create incentives to run fewer experiments as your product grows? A warehouse-native approach to experimentation is built specifically to answer yes to all three — and for healthcare teams where trust in results is non-negotiable, that auditability is worth prioritizing.

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