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testcritic

Flagsmith vs ConfigCat

Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.

Entry price

From $40 per month (Start-Up, billed yearly; $45 monthly)

Free tier

From $110 per month (Pro)

Free tier

What drives the bill

The metric that actually scales your invoice.

Free covers 50k requests a month and one seat; Start-Up raises that to 1M requests and 3 seats, Scale-Up is $250/month yearly. Considerably cheaper than LaunchDarkly, and self-hosting removes usage pricing entirely.

Plans run Free, Pro $110, Smart $325, Enterprise $900 and Dedicated $4,500 a month. Unlimited seats and unlimited flag reads on every plan, including free — unusual and genuinely valuable for wide access; paid tiers mainly raise flag, environment and product limits.

Free tier

Free cloud tier with a monthly request allowance; open-source self-hosting is unlimited.

Free forever plan with a monthly config-request allowance and unlimited members.

Open source

BSD-3-Clause (core)

Self-hostable

No-code authoring

Languages

JavaScriptTypeScriptPythonJavaC#GoRubyPHPSwiftKotlin
JavaScriptTypeScriptPythonJavaC#GoRubyPHPSwiftKotlinDart

Platforms

WebAPIiOSAndroid
WebAPIiOSAndroidDesktop

Fits teams

Solo / side projectStartupScale-up / mid-marketEnterprise
Solo / side projectStartupScale-up / mid-market

Adoption

Established

Flagsmith · since 2018

Established

ConfigCat · since 2018

Strengths

  • Genuinely easy self-hosting with a Docker image and Helm chart.
  • Simple, comprehensible pricing.
  • Remote config alongside flags, which covers a lot of mobile use cases.
  • Unlimited team members at every tier, so product and support can toggle flags too.
  • Very simple to adopt — an afternoon, not a project.
  • Broad SDK coverage including Dart and Elixir.

Limitations

  • Experimentation features are basic.
  • Smaller company and community than the leaders.
  • Fewer governance controls for large organisations.
  • No experimentation or analytics to speak of.
  • Limited targeting sophistication compared to LaunchDarkly.
  • Small vendor.

Best for

Teams wanting straightforward flags without LaunchDarkly pricing or Unleash's operational depth.

Teams that want simple, cheap flags accessible to the whole company.

All of these integrate with: Datadog, Slack, Jira, Terraform.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.