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featflags vs PostHog
Flags inside an analytics suite, billed per flag request, with no seat charge. Every claim about PostHog below links to its own docs or pricing, read on 12 and 15 October 2026.
Who PostHog is for
Teams already using PostHog for product analytics and session replay who want flags and experiments in the same place. Its flags page lists product engineers, product managers and growth engineers among the people it’s for.
Feature flagsPricing
featflags
Unlimited seats and flags on every plan, and no per-user pricing. Free has fixed limits and no overage. Team ([PRICE]/month) and Business ([PRICE]/month) include a monthly traffic allowance and charge [PRICE] per million above it.
Prices aren’t final yet; see pricing.
PostHog
Team members are unlimited. The first 1M flag requests a month are free, then $0.0001 per request up to 2M, falling to $0.00001 above 50M. Browser and mobile SDKs request flags when they start, when a user is identified and when their properties change, so the bill follows your traffic. Approvals and SAML need the Scale package ($750/month) or Enterprise.
Flag costsPricingWhen flags are requestedPlatform packagesFeatures
| Feature | featflags | PostHog |
|---|---|---|
| Targeting | Rules on any attribute, individual targets, segments, prerequisites and uploaded lists of customer IDs | Property filters, cohorts, groups, GeoIP and flag dependenciesCreating flags |
| Percentage rollouts | Percentage rollouts, time-based ramps and release templates on every plan; on Team and Business, templates that advance on their own and guarded releases that pause or roll back when a metric gets worse | Percentage rollouts on every flagCreating flags |
| Approvals | Team and Business | Scale package or EnterpriseApprovalsPlatform packages |
| Scheduled changes | Team and Business | One-off and recurring scheduled changes; plan not statedScheduled changes |
| Audit history | Every change with its diff and a restore; kept 7 days on Free, 1 year on Team, 3 years on Business. On Business, an organization-wide audit log with sign-ins, tokens and support access, exported or streamed to Datadog, Splunk or any HTTPS endpoint | Activity log, kept 7 days on Boost, 2 months on Scale and 60 months on EnterpriseActivity logsPlatform packages |
| Experiments | A/B/n tests on any flag with Bayesian or sequential frequentist results: 1 running at a time on Free, 20 on Team, unlimited on Business. Bandits on Business. No CUPED, holdouts or warehouse analysis | Billed as flag requests: Bayesian or frequentist with sequential testing, CUPED, holdouts and metrics from tables synced into PostHog; no bandits or mutually exclusive experimentsExperimentsExperiments productPricing |
| AI assistants (MCP) | Hosted, on every plan. It reads and changes flags as you, or read-only if you choose, and its changes go through your approvals | Official and hosted, free on every plan. It reads and writes across PostHog, flags and experiments included, with a read-only modeMCP server |
| SDKs | 14: TypeScript (on Cloudflare Workers and Vercel Edge too), React, React Native, Go, Python, Java, Rust, .NET, Ruby, PHP, Elixir, iOS, Android and Flutter | Web, mobile and backend libraries, including .NET and UnityFeature flagsLibraries |
| OpenFeature | Providers for Go, Python, Java, .NET, Ruby, PHP, Elixir, iOS, Android and Flutter | Official providers for Python and JavaScriptOpenFeature |
| Self-hosting | No, hosted only | An open-source hobby deploy that’s officially unsupported; paid features are cloud-onlySelf-hosting |
| SSO | Google and GitHub sign-in on every plan; SAML or OpenID Connect through your identity provider on Business. No SCIM | Google, GitHub and GitLab sign-in; SAML and OIDC on Scale or EnterpriseSSOPlatform packages |
Moving from PostHog
There’s no importer for PostHog yet. Recreate your flags and segments in the dashboard, or script the move with the featflags CLI, the API or the Terraform provider.
When to pick PostHog instead
You already use PostHog and want to see a flag’s effect, and your experiments’ results, in your analytics and session replays.
Feature flagsExperimentsYour traffic fits in the free 1M requests a month.
Flag costs
Other comparisons
- featflags vs LaunchDarklyBoth have unlimited seats. LaunchDarkly also bills each server connection and each client-side user.
- featflags vs FlagsmithOpen source and self-hostable. The hosted plans bill API requests and team members.
- featflags vs UnleashOpen source and self-hostable, priced per seat on the paid plans.
- featflags vs ConfigCatClosest to us on pricing: unlimited seats and a usage meter, with flag caps on the cheaper plans.
- featflags vs StatsigAn experimentation platform where flag checks are free. Now part of Amplitude.
- featflags vs GrowthBookOpen-source experimentation and flags, priced per seat plus metered requests.
Try featflags with your own flags
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