Feature flags & experimentation Category leader

LaunchDarkly

Feature flags and experimentation for shipping and testing in production

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Feature management platform for rolling out features to chosen users and running experiments. Offers a free Developer plan with 30 SDKs and unlimited environments on paid plans.

  • Percentage rollouts
  • User targeting rules
  • Kill switch
  • Multi-language SDKs
  • A/B experiments
  • Per-environment flags

Also includes

  • Audit log
  • Approval workflows
  • Scheduled changes
  • Edge evaluation
  • Flag dependencies
  • Mobile SDKs
  • Role-based access
  • Code references
  • Chat notifications
  • Bayesian statistics

From the vendor's own site. Not yet verified by SoftScout. A missing item may just mean we haven't confirmed it.

Feature flags & experimentation Rising

DevCycle

Free plan· $500/mo

Feature flags with edge delivery and OpenFeature support

Key features

  • Percentage rollouts
  • Multi-language SDKs
  • A/B experiments
  • Per-environment flags

Feature flags & experimentation Category leader

Optimizely Feature Experimentation

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Feature flags and experiments across backend, mobile and edge

Key features

  • Percentage rollouts
  • User targeting rules
  • Kill switch
  • Multi-language SDKs
  • A/B experiments

Feature flags & experimentation Rising

Reflag

Free plan· $100/mo

TypeScript feature flags that clean up after themselves

Key features

  • Percentage rollouts
  • Per-environment flags