Used For

• +**Your new checkout flow crashes and users are angry** → Instantly disable the feature while keeping the old one running
• +**You want to test the redesigned dashboard with your team first** → Create an "internal users" segment and enable it only for them
• +**Rolling out payment options country by country** → Turn on Apple Pay for US users, add PayPal for Europeans next week
• +Gradual rollouts - enable for 5% of users, then 25%, then everyone once you're confident
• +Remote config changes - swap button colors or payment methods without app store approval

Best For

• >Your team deploys weekly but still sweats every release
• >You want to test new features with internal users before customers see them
• >Last deployment broke everything and you spent Saturday fixing it

Not For

• -Solo developers or tiny teams - the overhead isn't worth it unless you're constantly experimenting
• -Teams that deploy once a quarter - you're adding complexity you don't need
• -Anyone wanting plug-and-play simplicity - this requires developer integration and ongoing management

Pairs With

• *Amplitude (to track how your feature rollouts actually affect user behavior)
• *Datadog (to monitor performance when you flip features on for more users)
• *Slack (where your team gets alerts when features are enabled or something breaks)
• *GitHub (where developers wrap new code in flags before merging)
• *Vercel (for deployment previews that work with your feature flag setup)
• *Cerbos (to combine feature access with user permission policies)

The Catch

• !Takes 5 minutes to integrate but weeks to set up proper segments and rollout strategies
• !You'll spend time managing flags instead of writing features - someone needs to own this
• !Pricing isn't listed anywhere which usually means "enterprise contact us" territory

Bottom Line

Turn features on and off without touching code - deploy with confidence, rollback instantly when things break.