Here’s where to start. Apps Gone Free/AppAdvice Daily (iOS) Use AppAdvice Daily, formerly known as AppsGoneFree, to find paid iOS apps available to download for free.

Sometimes you might want to install an app that doesn’t meet the rules of iOS and Android; or you might want to join a beta test where only unofficial app packages are available.

The era of app store exclusivity may be coming to an end. While the Google Play Store and Apple App Store are still the de facto app sources on Android and iOS devices, legal battles have opened ...