XDA Labs is described as 'platform that allows developers to freely distribute and promote their apps -- without fear of having their products removed due to content restrictions or corporate censorship. Labs is free to use and developers keep 100% from Paypal and Bitcoin purchases'. There are more than 10 alternatives to XDA Labs for a variety of platforms, including Android, Online / Web-based, Android Tablet, Fire TV and Kindle Fire. The best alternative is F-Droid, which is both free and Open Source. Other great apps like XDA Labs are Google Play Store (Free), Aptoide (Free, Open Source), Fossdroid (Free, Open Source) and G-Droid (Free, Open Source).
Aptoide is a distributed marketplace for mobile applications which runs on the Android operating system. In Aptoide, unlike the default Google Play Store, there is not a unique and centralized store but each user manages their own store.
The project's aim is to promote free and open source software on the Android platform. Fossdroid takes its data from F-Droid, but organizes apps in an attractive, Google Play-like arrangement with the ability to view apps by popularity.
Unofficial F-Droid client in the style of the classic one. Jump over the lazy dog, manage repositories, and install software quickly. No privileged extension, root installation, or sharing local repositories nearby.