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featflags vs LaunchDarkly
Both have unlimited seats. LaunchDarkly also bills each server connection and each client-side user. Every claim about LaunchDarkly below links to its own docs or pricing, read on 12 and 15 October 2026.
Who LaunchDarkly is for
Pricing
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.
LaunchDarkly
Seats are unlimited on every plan. The free Developer plan includes 5 service connections and 1,000 client-side MAU a month, with 1 project and 3 environments. Foundation charges $10 per service connection and $8.33 per 1,000 client-side MAU a month, billed yearly. A service connection is one server SDK instance connected to one environment, counted by the minute, so autoscaling and extra environments add to the bill. Enterprise is priced on request.
PricingService connectionsFeatures
| Feature | featflags | LaunchDarkly |
|---|---|---|
| Targeting | Rules on any attribute, individual targets, segments, prerequisites and uploaded lists of customer IDs | Rules on context attributes, individual targets, segments and prerequisites; “advanced user targeting” on EnterpriseTargetingPricing |
| 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 and progressive rollouts; guarded rollouts need Enterprise and the Guardian add-onProgressive rolloutsGuarded rollouts |
| Approvals | Team and Business | EnterpriseApprovalsPricing |
| Scheduled changes | Team and Business | EnterpriseScheduled changesPricing |
| 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 | 30 days on Developer; unlimited flag history on Foundation; audit logging on EnterpriseChange historyPricing |
| 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 | On every plan, with 100K experimentation MAU a month on Developer: Bayesian or frequentist, sequential testing, CUPED, bandits, holdouts, mutually exclusive layers and warehouse-native analysisPricingExperimentation |
| 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, hosted or run locally, on every plan. It creates and changes flags; a read-only setup is documented for the local server onlyMCP serverLocal MCP serverPricing |
| 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 | 30, including mobile, Cloudflare, Vercel, Fastly and AkamaiPricingSDKs |
| OpenFeature | Providers for Go, Python, Java, .NET, Ruby, PHP, Elixir, iOS, Android and Flutter | Official providers for .NET, Java, Node.js, PHP, Python, Ruby and CloudflareOpenFeature |
| Self-hosting | No, hosted only | No; only the Relay Proxy runs on your infrastructureRelay Proxy |
| SSO | Google and GitHub sign-in on every plan; SAML or OpenID Connect through your identity provider on Business. No SCIM | SAML on EnterpriseSSOPricing |
Moving from LaunchDarkly
featflags imports a LaunchDarkly project through its API: environments, context kinds, flags with their targeting, segments and big segments. Bucketing is compatible, so every user keeps the variant they had. Run it with --dry-run to see the plan first, and with --verify to check evaluations against LaunchDarkly’s own SDK. Running it again only writes what changed, so you can keep both in sync while you switch SDKs.
When to pick LaunchDarkly instead
You need flag changes to reach clients in under a second. LaunchDarkly streams updates by default; featflags takes seconds.
ArchitectureYou want experiments measured on data in your own warehouse, or CUPED, holdouts and mutually exclusive layers, on every plan.
ExperimentationPricingYou need an SDK we don’t have yet, such as C++, Roku, Erlang or Haskell.
SDKs
Other comparisons
- 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 PostHogFlags inside an analytics suite, billed per flag request, with no seat charge.
- 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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