Optimizely A/B Testing - Optimizely A/B Testing is an experimenting platform that uses two or more versions of demographics to the users.
Decidr - Make better decisions with quick A/B polls
StoreMaven - A/B testing and design platform for App Store and Google Play icons, screenshots and videos.
Zoho PageSense - The Complete A/B Testing and Website Optimization Software for Marketers.
Apptimize - Mobile A/B Testing for iOS and Android. Improve Your Native App Codelessly in Real-time.
GoodUI Evidence - People's A/B test results that show which UI ideas work best