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GrowthBook vs Statsig
GrowthBook is the open source leader in feature flagging and experimentation. Companies choose GrowthBook over Statsig for platform flexiblity, world-class feature flags, and cost-effective pricing at scale.
At a glance: GrowthBook vs Statsig
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Why choose GrowthBook over Statsig
Developer-friendly, full-stack
experimentation platform
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Proprietary experimentation
platform
Ready to migrate from Statsig to GrowthBook?
When costs limit experimentation at scale, it’s time to switch to GrowthBook.
How GrowthBook compares to Statsig?
Statsig customers switch to GrowthBook for trusted experiments, predictable costs, and better control over their stack.
“We don’t need any code changes, we don’t need an app release. We just configure the new tests and launch right away.”
“Our goal was to consolidate everything into a single platform while saving money and ensuring compliance and security.”
“Being able to turn a feature on and off with a flip of a switch is fantastic... That’s so much easier than having to do a deploy or a roll-back.”
“Experimentation showed what customers actually do rather than what we assume they’ll do.”
“People only see the wins, but there’s actually greater value in avoiding losses. We’ve stopped changes that could have cost millions.”
"GrowthBook allowed us to uplevel our code, speed up decision-making, and focus on what we do best—building a world-class AI lending marketplace."
"The fact that we could retain ownership of our data was very, very important. Almost no solutions out there allow you to do that."
“GrowthBook lets us build experiments exactly how we want. The ability to target based on culture and geography, as granular as needed, is a major win for us.”
"The fact that GrowthBook offered us the ability to keep that data in-house was a key reason why we chose to work with them."
"The fact that GrowthBook offered us the ability to keep that data in-house was a key reason why we chose to work with them."
"The fact that we could retain ownership of our data was very, very important. Almost no solutions out there allow you to do that."
“GrowthBook lets us build experiments exactly how we want. The ability to target based on culture and geography, as granular as needed, is a major win for us.”
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Product teams choose GrowthBook over Optimizely when they want to reduce complexity and cost with a warehouse-native experimentation, feature flags, and product analytics platform.
FAQs
Yes. GrowthBook supports full self-hosting, giving teams complete control over their data and infrastructure. Statsig is cloud-only with no self-hosted deployment option.
The OpenAI acquisition of Statsig introduces new risks around platform longevity and data governance. Statsig’s CEO has since left, and the product is now part of OpenAI’s platform portfolio, where acquisitions have a risk of being discontinued. There is also no published policy separating customer experimentation data from OpenAI’s AI training. GrowthBook remains independent and open-source, giving teams more long-term control over their experimentation infrastructure.
A proprietary experimentation engine means your team cannot inspect statistical calculations, reproduce results, or audit experiment logic. An open source engine makes all of that possible in your own environment. Statsig's engine is proprietary, whereas GrowthBook's is fully open source, so your data team can inspect every query and validate any outcome.
GrowthBook offers more predictable pricing for experimentation than Statsig. GrowthBook' per seat pricing with unlimited experiments and feature flags is more predictable. Statsig usage-based pricing is based on metered events. Cost increases as experiments, and feature flags, scale.
Yes, both have proven capability to handle billions of event look ups. The difference is in the pricing - with GrowthBook you have predictable per seat pricing with unlimited feature flags and experiments, whereas Statsig costs can spike with traffic. Companies often reduce the amount of traffic they test on to contain costs.
GrowthBook is open source with full SQL visibility and tranparency. Statsig is a proprietary platform owned by OpenAI. GrowthBook lets teams inspect experiment logic, run analysis in their own warehouse, and self-host if needed
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