Internal App Store is described as 'Manage your own internal Android App Store:'. There are four alternatives to Internal App Store for a variety of platforms, including Android, Android Tablet, iPad, iPhone and Online / Web-based. The best alternative is Visual Studio App Center, which is free. Other great apps like Internal App Store are Appaloosa-Store (Freemium), AppBlade (Paid) and Applause (Paid).
Continuously build, test, release and monitor apps for every platform. Connect to GitHub, Bitbucket, GitLab, or Azure DevOps and build your app in the cloud on every commit. Automatically run unit tests, release to testers and stores, or test your UI on real devices.
AppBlade provides a suite of pro tools to deploy, test, manage and secure your mobile applications. AppBlade provides your developers and IT organization the tools they need to manage applications across multiple platforms.