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ConfigCat vs Flagsmith
ConfigCat and Flagsmith both sell feature flags and remote configuration to software teams, with free plans and published prices. ConfigCat is a hosted service that bills by config downloads and gives every plan unlimited seats. Flagsmith is open source, bills by API requests and team members, and can run in its cloud, a private cloud, or on your own servers.
| What buyers compare | ConfigCat | Flagsmith |
|---|---|---|
| Price per monthSources 3, 4 | Forever Free: $0. Pro $110, Smart $325, and Enterprise $900 a month. Dedicated private cloud $4,500 a month | Free: $0. Start-Up $45 and Scale-Up $300 a month as listed, with yearly billing saving more than 10%. Enterprise: quote |
| Free plan or trialSources 3, 4 | Free forever with 10 feature flags, 2 environments, and 5 million config downloads a month, with the same features as paid plans | Free forever with 50,000 requests a month and 1 team member. 14-day free trial on Start-Up and Scale-Up |
| How usage is countedSources 3, 4 | Config downloads, flags, and environments by plan. Seats are unlimited on every plan | API requests a month, from 1 million on Start-Up, plus team members: 3 on Start-Up and 5 included on Scale-Up, then $60 per member a month up to 20 |
| Integrations and featuresSources 3, 4 | Targeting by user attribute, percentage rollouts, and open-source SDKs for .NET, Java, Android, iOS, Python, and other languages | Segments, scheduled flags, A/B and multivariate testing, third-party integrations, and an MCP server |
| Security and deploymentSources 3, 4 | ISO 27001:2022 and GDPR listed on the pricing page. Dedicated plan runs a private cloud managed by the buyer or by ConfigCat | Open-source core. SAML SSO, roles, change requests, and audit logs on Scale-Up. Enterprise adds private cloud and self-hosted options |
| Best forSources 1, 2 | Small and mid-size software teams that want feature flags, percentage rollouts, and user targeting across many languages, with a flat monthly price that does not grow with headcount or traffic from end users | Smaller engineering teams that want feature flags and remote config with an open-source or simple cloud path |
List prices in US dollars per month before tax, as published on each vendor's site on November 4, 2026, billed monthly unless the cell says otherwise. "Quote" means the vendor sets the price through its sales team.
Which one fits
ConfigCat is the stronger pick for teams that want hosted flags with unlimited seats and simple published tiers, while Flagsmith is the stronger pick for teams that want an open-source option they can host themselves.
Choose ConfigCat if
- Your whole company needs access. ConfigCat does not charge per seat on any plan.
- You want to see the full price list up front, from $0 to $4,500 a month.
- You want SDKs across back end, web, and mobile without running servers yourself.
Choose Flagsmith if
- You may need to self-host. Flagsmith's open-source core can run on your own infrastructure.
- You want A/B and multivariate tests in the same tool, from the $45 Start-Up plan.
- You need SAML SSO and change requests on a published plan, which Scale-Up includes.
What buyers say
“Aside from the amazing customer support we've received over the years, ConfigCat has made it super easy for new engineers to easily configure and launch our tests.”
Kenny Lugo · Product Manager at Speechify, quoted on ConfigCat's site · source
“We picked Flagsmith because security wanted the option to run it inside our own cloud. ConfigCat was simpler to start with, but self-hosting decided it for us.”
Platform engineer, fintech company
Representative buyer view
“ConfigCat's unlimited seats meant product managers and QA could flip flags themselves. With a per-seat tool we would have kept access to engineers only.”
Engineering manager, B2B SaaS company
Representative buyer view
Verdict
ConfigCat (7.5 out of 10, Recommend) is the choice for teams that want hosted feature flags with unlimited seats and published prices from a free tier to $900 a month. Flagsmith (6.8 out of 10, Conditional recommend) is the choice when an open-source, self-hostable flag service matters more, with Start-Up listed at $45 a month and SAML SSO on Scale-Up.
Methodology
We read the ConfigCat and Flagsmith pricing pages on November 4, 2026 and recorded every published price, limit, and plan feature. A cell reads "Not published" when the vendor does not state that detail on its site.
Scores and best-fit notes come from the AIR reviews of each product. Buyer quotes come from public review sites and vendor-published customer quotes. Quotes marked Representative buyer view are written by AIR to reflect buyer feedback and carry no source link.