Microsoft App Center: You can upload your APKs to MS App Center and create a link without login requirements. The additional Distribute SDK will notify users ab

Microsoft App Center: You can upload your APKs to MS App Center and create a link without login requirements. The additional Distribute SDK will notify users about new app updates when the app is running. You could probably setup an own repeating update task which checks if updates are available. Apparently you can have up to 2000 users in one app version release. https://docs.microsoft.com/en-us/appcenter/sdk/distribute/android https://docs.microsoft.com/en-us/appcenter/sdk/distribute/an... Firebase App Distribution: Pretty much the same like MS App Center but from Google. You can upload APKs and App Bundles and create public invitation links. The firebase SDK handles app updates as well. You can have up to 200 testers in one distribution. https://firebase.google.com/docs/app-distribution?hl=en https://firebase.google.com/docs/app-distribution?hl=en If I recall correctly, MS App Center doesn't come with analytics unless you add it yourself. For firebase, you should explicitly disable analytics if you don't want it. In both cases you will still have to explain to your users how to allow installation of "apps from unknown sources".