by LaunchDarkly (Catamorphic Co.)Feature flags
Feature flags and experimentation with unlimited seats, billed by client-side MAU and server-side service connections.
Feature flags and experiments on one platform with unlimited seats, free to 1,000 client-side users and $8.33 per 1,000 after that.
LaunchDarkly replaces a home-grown flag system with targeting, percentage rollouts and A/B tests in one place, with 30 SDKs (13 client-side, 13 server-side, 4 edge). Seats are not charged on any plan; the bill follows client-side MAU and server-side service connections. Its security page lists SOC 2 Type II, ISO 27001 and FedRAMP, and SSO, audit logging and an EU instance are available on Enterprise.
Against 3 other products we reviewed in Feature flags: what you pay for with each, the five access facts, the plan limits we recorded and each review's bottom line. The note under the table says how each one was checked.
| Metric | LaunchDarkly | Statsig | ConfigCat | Flagsmith |
|---|---|---|---|---|
| What you're paying for | Saves engineering timeFeature flags and experiments on one platform with unlimited seats, free to 1,000 client-side users and $8.33 per 1,000 after that. | Worth the priceFeature flags and full A/B testing on a free plan with unlimited seats, billed only for analytics events, not for flag checks. | Worth the priceFeature flags on flat plans with unlimited seats and users, and SAML SSO and SCIM even on the free plan. | Worth the priceUnlimited flags and environments on every plan, an open-source core you can self-host, and SOC 2 Type II on the hosted service. |
| Overall score | 6.5 | 8.7Best | 6.0 | 5.1 |
| Free option | Free plan | Free plan | Free plan | Free plan |
| Card to start | No card needed | No card needed | No card needed | –Not measured |
| Getting access | Self-serve | Self-serve | Self-serve | Self-serve |
| Starter priceCheapest paid plan | $8.33/1k client-side MAU/mo | $150/mo | $110/mo | $40/mo |
| Pricing model | Usage-based | Tiered | Tiered | Tiered |
| Pricing page | Public prices | Public prices | Public prices | Public prices |
| Billing units | Client-side MAU and service connections | Metered events (exposures with Metric Lifts, logged events) | Flat plans sized by config JSON downloads and network traffic | Plans sized by API requests and team members |
| Free plan | 1,000 client-side MAU, 5 service connections, unlimited seats and flags | 2 million metered events/mo, unlimited flag checks and seats | 10 flags, 2 environments, 5M downloads/mo, unlimited seats | 50,000 requests/mo, 1 team member, unlimited flags |
| Reference scenario (50,000 MAU) | $416.50 on Foundation, billed yearly, computed | $0 on Developer, if no metered events | $110 on Pro, billed annually, if downloads stay near 15M | $500 on Scale-Up, billed yearly, computed |
| A/B testing | All plans; 100,000 experimentation MAU on Developer | All plans, incl. CUPED and sequential testing | Not listed; flag data sent to analytics tools | Multivariate flags; built-in analysis in beta |
| SOC 2 Type II and ISO 27001 | Both | SOC 2 Type II (Statsig report); ISO certificate listed is Amplitude’s | ISO 27001:2022 | SOC 2 Type II; not ISO 27001 certified |
| HIPAA BAA | Through an account executive | Enterprise | Not stated | Private cloud and self-hosted only |
| EU data region | EU instance for new Enterprise accounts and trials | EU hosting on Enterprise | Main infrastructure in the EU; EU-only CDN option | SaaS data in London (UK); region choice on private cloud |
| SAML SSO | Enterprise | Enterprise | Every plan, incl. Free | Scale-Up on the pricing page; Enterprise in the docs |
| Audit log | Enterprise | Change logs on every plan | 7 days on Free, 35 days on Pro | Scale-Up and Enterprise |
| Seats | Unlimited, no per-seat charge | Unlimited, no per-seat charge | Unlimited, no per-seat charge | 5 on Scale-Up, then $50 per member (yearly) |
| Bottom line | From its public pages, LaunchDarkly is the broadest platform here, with experiments on every plan and a long compliance list. Client-side users drive the bill, and SSO and audit logging are listed for Enterprise. | From its public pages, Statsig gives the most for nothing here: unlimited seats and flag checks, with experiments and analytics on the free plan. SSO and EU hosting need Enterprise, and the product now sits within Amplitude. | From its public pages, ConfigCat is the most focused flag service here, with the most team controls on its free plan. Its score reflects no built-in experimentation and a shorter compliance list. | From its public pages, Flagsmith offers unlimited flags on every plan, an open-source core and SOC 2 Type II. Team size sets the price, and a few plan details differ between its pricing page and docs. |
Evidence: LaunchDarkly: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; Statsig: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; ConfigCat: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run; Flagsmith: facts checked 2026-10-15 from its public sign-up and pricing pages, no completed hands-on run. Prices in USD as listed, excluding tax. "–" means not recorded.
Review from public pages
Written from LaunchDarkly's public pages (pricing, security or privacy, and docs) as read on Oct 15, 2026. We did not sign up, and no hands-on run is published yet.
We read LaunchDarkly's pricing page, its billing and service-connection docs, its security page and its EU and PHI docs on Oct 15, 2026; we did not sign up for this review. The pricing page has three plans and an add-on: Developer (free), Foundation (pay as you go after a 14-day trial), Enterprise (custom) and Guardian, a paid release-safety add-on for Enterprise. A billing switch shows Foundation at $8.33 per 1,000 client-side MAU and $10 per service connection billed yearly, or $10 and $12 billed monthly.
The docs explain the two units. A client-side MAU is a unique context key, usually a user, evaluated in a month by a client-side, AI or edge SDK. A service connection is one instance of one server-side SDK connected to one environment, measured in minutes, so every server instance in production and staging counts. The docs say MAU overage is never throttled on paid plans, while a Developer account that keeps exceeding its limits converts to read-only.
One point needs a question to sales: an Enterprise note on the pricing page says SSO and SAML are included on every plan, while the plan table marks SSO as Enterprise only and the SSO docs say it is available on select plans.
A/B tests on flags, Bayesian and frequentist analysis, CUPED and sequential testing are marked on all three plans, with 100,000 experimentation MAU on Developer.
vs ConfigCat: ConfigCat lists no experiment analysis and sends flag data to analytics tools instead.
No plan charges per seat, so the whole team can be invited at no extra cost.
The security page lists SOC 2 Type II, ISO 27001 and FedRAMP authorization, and an EU instance in AWS Frankfurt.
vs ConfigCat: ConfigCat lists ISO 27001 but no SOC 2; Statsig’s trust center lists a SOC 2 Type II report.
The docs say all LaunchDarkly SDKs are open source and document OpenFeature providers for several languages.
Foundation bills $8.33 per 1,000 client-side MAU billed yearly, so 50,000 users come to $416.50 a month.
Workaround: Server-side evaluation bills by service connections instead, and the first five are included.
The plan table lists SSO, SCIM, audit logging, custom roles, code references and flag scheduling on Enterprise.
The EU docs say the Frankfurt instance supports only net new Enterprise accounts and trials.
Developer includes 1,000 client-side MAU and 5 service connections; the docs say an account that keeps exceeding them converts to read-only.
LaunchDarkly bills two units on Foundation: client-side MAU at $8.33 per 1,000 billed yearly ($10 monthly) and server-side service connections at $10 each beyond the first five ($12 monthly). Seats, flags, projects and environments are not charged. Kubernetes, serverless, Python and Ruby setups get custom rates, because they create many server-side connections.
For our scenario, 50,000 MAU cost 50 × $8.33 = $416.50 a month billed yearly, or $500 billed monthly. One backend instance per environment is 2 service connections, within the 5 included. The page does not say whether Foundation includes free MAU; if the first 1,000 were included, the figure would be $408.17 (our arithmetic).
The docs say all LaunchDarkly SDKs are open source, and they document OpenFeature providers, so flag checks written against the vendor-neutral OpenFeature API can later point at another provider.
From its public pages, LaunchDarkly is the broadest platform here, with experiments on every plan and a long compliance list. Client-side users drive the bill, and SSO and audit logging are listed for Enterprise.
| Limit | As recorded |
|---|---|
| Billing units | Client-side MAU and service connections |
| Free plan | 1,000 client-side MAU, 5 service connections, unlimited seats and flags |
| Reference scenario (50,000 MAU) | $416.50 on Foundation, billed yearly, computed |
| A/B testing | All plans; 100,000 experimentation MAU on Developer |
| SOC 2 Type II and ISO 27001 | Both |
| HIPAA BAA | Through an account executive |
| EU data region | EU instance for new Enterprise accounts and trials |
| SAML SSO | Enterprise |
| Audit log | Enterprise |
| Seats | Unlimited, no per-seat charge |
Read from the vendor's public pages on Oct 15, 2026. No hands-on run is published yet. How we check
We have not published a sign-up run for LaunchDarkly yet. The access facts above were read from its sign-up and pricing pages on Oct 15, 2026.
We have not published API calls for LaunchDarkly yet.
LaunchDarkly lists 3 plans. The cheapest paid plan, Foundation, costs $8.33/1k client-side MAU/mo.
Prices as listed, USD, excluding tax; observed 2026-10-15.
Source: launchdarkly.com pricing page. Prices change; the observed date above is when our agent read them.
We read the pricing, security and docs pages of three feature flag services on the same day and scored them on the same six indicators. How each one bills, what 50,000 monthly users cost, and who should pick which.
