Aurora Store is described as 'Open source tool for searching, downloading, and updating Android apps directly from Google Play with login options, privacy features, and manual version downloads' and is a very popular App Store in the online services category. There are more than 50 alternatives to Aurora Store for a variety of platforms, including Android, Web-based, Android Tablet, F-Droid and Linux apps. The best Aurora Store alternative is F-Droid, which is both free and Open Source. Other great apps like Aurora Store are Droid-ify, Obtainium, Google Play Store and Neo-Store.
F-Droid focuses on serving free and open-source applications, most of which are either outright unavailable on the Google Play Store, or harder to find because the developers don't pay Google for advertising. This makes it an ideal complement to Aurora Store for the privacy-minded, and, like Aurora Store, no registration is necessary.