DeployGate - DeployGate enables developers to distribute beta apps to enable beta testing from fellow developers and community.
TestFlight - iOS beta testing on the fly.
Betatesters.io - The platform connecting mobile developers and beta testers
TestFairy - Painless Beta Testing
Visual Studio App Center - Continuous everything – build, test, deploy, engage, repeat
TestApp.io - A platform that helps both mobile app developers and owners to easily share their apps with everyone to get feedback before reaching publicly to Google and App stores.