Featureflow is an application feature management tool that allows you to safely and effectively release, manage and evaluate your applications features across multiple applications, platforms and languages. Dark / Silent Release with features turned off Gradual rollout to a percent of users Virtual Rollout and Rollback of features Environment and Component feature itinerary Target features to specific audiences A/B and Multivariant test new feature variants - migrate to the winner All without devops, engineering or downtime.