feat
7.9#7 in feature flag softwareFrom $19 a monthFree planAndroidiOSWebAPI
Visitfeat vs GrowthBook
GrowthBook
8.5#1 in a/b testing toolsFrom $40 a monthFree planAndroidiOSWebAPI
VisitWhat both publish
| Fact | feat | GrowthBook |
|---|---|---|
| Company legal name | The legal entity is feat labs, inc., incorporated in Delaware, United States. | The Chrome Web Store publisher and website footer identify the maker as GrowthBook Inc. |
| Feature flags | Flags support boolean, string, number, and JSON values. | Feature flags support targeting, gradual rollouts, low-latency delivery and rollback control. |
| Integrations | Pluggable metric sources include Segment, Mixpanel, PostHog, and custom sources; Slack integration is listed as coming in Q3 2026. | Listed warehouse integrations include Snowflake, BigQuery, Databricks, ClickHouse, Trino, and Adobe Experience Platform. |
| Privacy | Backend SDKs send no evaluation context to feat, while browser SDKs report only hashed identifier-and-kind pairs for MAU counting. | GrowthBook says no personally identifiable information leaves the data warehouse for analysis, and only aggregate data is accessed. |
| Product | feat is a hosted feature-flag platform for early engineering teams. | GrowthBook is a warehouse-native platform for experimentation, feature flags, and product analytics. |
| SDKs | First-party SDKs are available for Node.js, Bun, Deno, Go, Python, Ruby, browser JavaScript, and Flutter/Dart. | The SDK catalog covers JavaScript, React, Vue, Swift, Kotlin, Flutter, React Native, Node.js, Python, Ruby, PHP, Java, Go, C# and Elixir. |
| Security | Customer-facing endpoints use TLS 1.2+ and HSTS, with managed-service encryption at rest for Postgres, R2, and KV. | GrowthBook states SOC 2 Type II certification, GDPR, COPPA and CCPA compliance, encryption in transit and at rest, and warehouse-only aggregate access. |
feat plans
- FreeFree
- Starter$19 a month
- Growth$49 a month
- Scale$149 a month
- Elastic$299 a month
- EnterprisePriced on request
GrowthBook plans
- Starter (Cloud)Free
- Open SourceFree
- Open Source (Self-Hosted)Free
- StarterFree
- Pro$40 a month
- Pro (Cloud)$40 a month
Pick feat if…
It suits early engineering teams seeking hosted flag management with local server-side evaluation, flexible targeting, and percentage rollouts. The listed SDKs and metric integrations may fit teams using those tools and languages.
Pick GrowthBook if…
Starter is described as suitable for individuals or small teams, while Pro is aimed at small and mid-sized teams. Enterprise is for teams operating at scale, with managed cloud and self-hosted deployment options.