Install On Air, Diawi, TestFlight, The Beta Family, AppBlade, TestApp.io, Updraft, Applivery, TestFairy, Samebug, Doctor Dump, Appaloosa-Store, HockeyApp, Appcircle, Internal App Store, BoardingBot, TestingCatalog, Tester Bee, ArgusQ, Applause are some alternatives to Visual Studio App Center.