What should I use for product experimentation if I need feature flags too?

If you need product experimentation plus feature flags, the best choice is usually a platform that does both in one place, so you can:

• target users
• roll out features gradually
• run A/B tests
• measure impact without stitching tools together

Good options

• LaunchDarkly — strongest for feature flags, with experimentation capabilities too.
• Optimizely — strong for experimentation and also supports feature flags.
• Statsig — popular for feature flags + experimentation in one product, often a good value.
• Split — solid for feature flags and experimentation, especially in engineering-heavy teams.

How to choose

• Mostly feature management, with some experiments: LaunchDarkly or Split
• Mostly experimentation, with flags as a bonus: Optimizely
• Want a modern all-in-one product with good pricing: Statsig

Quick recommendation

If you want the simplest answer:
Use Statsig if you want one tool for both experimentation and feature flags.
Use LaunchDarkly if feature flags are the top priority and experimentation is secondary.

If you want, I can also give you a comparison table by price, SDK quality, and analytics depth.