TestFlight, Google Play Developer Console, and App Center are popular mobile app distribution platforms that cater to different needs. TestFlight is exclusive to Apple platforms, offering features like up to 25 internal testers, unlimited external testers, simultaneous testing of multiple builds, and a free tier. Google Play Developer Console allows open beta tests on the store, supports up to 10,000 external testers, and has a more limited set of features compared to TestFlight. App Center offers extensive integrations, unlimited users and testers, tester groups, powerful crash reporting, and analytics, but is restricted to Apple platforms. TestFairy focuses on enterprise customers, offering video recording of sessions, in the cloud or on-premise deployment, and single sign-on solutions, but lacks a free tier and crowdtesting features. Appaloosa provides an auto-updating app feature, SSO authentication, tester groups, and private app stores, but is restricted to enterprise plans and lacks crash reporting capabilities. DeployGate offers customizable landing pages, automatic tester account creation, and simultaneous testing of multiple builds, but has limited third-party integrations and lacks in-app feedback and bug reporting features. Instabug focuses on user-centric stability and performance monitoring for mobile apps, offering a sandbox and demo booking option.