Feature flags · Comparison
ConfigCat vs Flagsmith vs LaunchDarkly vs Statsig
4 products compared side by side: what you pay for with each one first, then the five access facts, entry prices, recorded plan limits and the bottom line of each review. The evidence note under the table says how each product was checked.
Side by side
| Metric | ConfigCat | Flagsmith | LaunchDarkly | Statsig |
|---|---|---|---|---|
| What you're paying for | 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. | 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. |
| Overall score | 6.0 | 5.1 | 6.5 | 8.7Best |
| Free option | Free plan | Free plan | Free plan | Free plan |
| Card to start | No card needed | –Not measured | No card needed | No card needed |
| Getting access | Self-serve | Self-serve | Self-serve | Self-serve |
| Starter priceCheapest paid plan | $110/mo | $40/mo | $8.33/1k client-side MAU/mo | $150/mo |
| Pricing model | Tiered | Tiered | Usage-based | Tiered |
| Pricing page | Public prices | Public prices | Public prices | Public prices |
| Billing units | Flat plans sized by config JSON downloads and network traffic | Plans sized by API requests and team members | Client-side MAU and service connections | Metered events (exposures with Metric Lifts, logged events) |
| Free plan | 10 flags, 2 environments, 5M downloads/mo, unlimited seats | 50,000 requests/mo, 1 team member, unlimited flags | 1,000 client-side MAU, 5 service connections, unlimited seats and flags | 2 million metered events/mo, unlimited flag checks and seats |
| Reference scenario (50,000 MAU) | $110 on Pro, billed annually, if downloads stay near 15M | $500 on Scale-Up, billed yearly, computed | $416.50 on Foundation, billed yearly, computed | $0 on Developer, if no metered events |
| A/B testing | Not listed; flag data sent to analytics tools | Multivariate flags; built-in analysis in beta | All plans; 100,000 experimentation MAU on Developer | All plans, incl. CUPED and sequential testing |
| SOC 2 Type II and ISO 27001 | ISO 27001:2022 | SOC 2 Type II; not ISO 27001 certified | Both | SOC 2 Type II (Statsig report); ISO certificate listed is Amplitude’s |
| HIPAA BAA | Not stated | Private cloud and self-hosted only | Through an account executive | Enterprise |
| EU data region | Main infrastructure in the EU; EU-only CDN option | SaaS data in London (UK); region choice on private cloud | EU instance for new Enterprise accounts and trials | EU hosting on Enterprise |
| SAML SSO | Every plan, incl. Free | Scale-Up on the pricing page; Enterprise in the docs | Enterprise | Enterprise |
| Audit log | 7 days on Free, 35 days on Pro | Scale-Up and Enterprise | Enterprise | Change logs on every plan |
| Seats | Unlimited, no per-seat charge | 5 on Scale-Up, then $50 per member (yearly) | Unlimited, no per-seat charge | Unlimited, no per-seat charge |
| Bottom line | 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. | 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. |
Evidence: 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; 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. Prices in USD as listed, excluding tax. "–" means not recorded.
When to pick each
In the words of each review, with the date its facts were checked.
From our ConfigCat review
Checked Oct 15, 2026- Pick ConfigCat when
- You want a flat price that does not grow with users, and SAML SSO without an Enterprise contract.
- Pick LaunchDarkly when
- You want experimentation built in, or SOC 2 Type II and FedRAMP on the vendor’s own name.
From our ConfigCat review
Checked Oct 15, 2026- Pick ConfigCat when
- You need SAML SSO, SCIM or EU data storage on a self-serve plan.
- Pick Statsig when
- You want A/B tests and product analytics built in, on a free plan.
From our Flagsmith review
Checked Oct 15, 2026- Pick Flagsmith when
- You want unlimited flags and environments on a free plan, built-in experiment analysis or SOC 2 Type II.
- Pick ConfigCat when
- You want SAML SSO and SCIM on every plan, unlimited seats and EU-based infrastructure.
From our LaunchDarkly review
Checked Oct 15, 2026- Pick LaunchDarkly when
- You want FedRAMP and ISO 27001 on the vendor’s own name, or an EU instance on an Enterprise contract.
- Pick Statsig when
- You want flag checks that are not billed per user and experimentation on a free plan with 2 million events.
From our LaunchDarkly review
Checked Oct 15, 2026- Pick LaunchDarkly when
- You want A/B testing and experiment analysis built into the flag tool.
- Pick ConfigCat when
- You want flat plan prices, SAML SSO and SCIM on every plan, and no per-user billing.
From our Statsig review
Checked Oct 15, 2026- Pick Statsig when
- You want flag checks that are not billed per user, and experiments and analytics on a free plan.
- Pick LaunchDarkly when
- Your security review asks for ISO 27001 or FedRAMP in the vendor’s own name.
From our Statsig review
Checked Oct 15, 2026- Pick Statsig when
- You want experiment analysis and rollout metrics built in.
- Pick ConfigCat when
- You need SAML SSO, SCIM or EU data storage without an Enterprise contract.
Entry price
Baseline: each product's cheapest paid plan, per month. Included usage differs, so read the line under each price.
- ConfigCatPro$110/moBilled annually ($120 monthly); 100 flags, 3 environments, 25M downloads and 100 GB/mo
- 35-day audit log
- 99.9% uptime SLA
- Add-on: +25M downloads and +100 GB for $95/mo
- Standard support
- FlagsmithLowest priceStart-Up$40/moBilled yearly ($45 monthly); 1,000,000 requests/mo, 3 team members
- Unlimited projects
- 2FA and scheduled flags
- A/B and multivariate testing
- Overage $7 per 100,000 requests
- LaunchDarklyFoundation$8.33/1k client-side MAU/moBilled yearly ($10 monthly); service connections $10 each beyond the first 5 ($12 monthly)
- Unlimited projects and environments
- 14-day trial, then pay as you go
- No platform or seat fees
- Custom rates for Kubernetes, serverless, Python and Ruby
- StatsigPro$150/moPer project; 5M metered events/mo, then $0.05 per 1,000
- Holdouts, multi-arm bandits, custom queries
- Change reviews, approvals and reverts
- Unlimited analytics retention
- 100,000 session replays/mo
Prices as listed on each pricing page, in USD per month, excluding tax. Observed: ConfigCat 2026-10-15, Flagsmith 2026-10-15, LaunchDarkly 2026-10-15, Statsig 2026-10-15.
Which one fits
- If you need to start today without a sales call
- StatsigSelf-serve sign-up, no card needed; the highest score of the 4 self-serve products here (8.7/10).
- If you want to try it without entering a card
- StatsigFree plan, no card needed, and the highest score of the 3 that skip the card (8.7/10).
- Lowest starter price
- LaunchDarkly$8.33/1k client-side MAU/mo for the Foundation plan.
- Highest overall score
- Statsig8.7/10 (Excellent). The review shows the score breakdown and the run behind it.
Picked by fixed rules from the table above, not by hand. How we score