Presence in the main F-Droid repository requires the app to be open-source. A downloaded APK might include closed-source components. "The main repository, host

Presence in the main F-Droid repository requires the app to be open-source. A downloaded APK might include closed-source components. "The main repository, hosted by the project, contains only free and open source apps... The website also offers the source code of applications it hosts... F-Droid builds apps from publicly available and freely licensed source code. New apps, which must be free of proprietary software are contributed by user submissions or the developers themselves." https://en.wikipedia.org/wiki/F-Droid https://en.wikipedia.org/wiki/F-Droid