The best free alternative to Google Play Store is F-Droid, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Google Play Store and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Google Play Store are Aptoide (Free, Open Source), Steam (Free), APKPure (Free) and Aurora Store (Free, Open Source).
APKSpree is a top Android Repo for Android Researchers and Android enthusiasts. With 5k Android apps in it's repo and increasing day by day, APKSpree is best android repo. All the Android apps can be verified by MD5 Hash.
The OpenStore is the official app store for Ubuntu Touch. It is an open source project run by a team of volunteers with help from the community. You can discover and install new apps on your Ubuntu Touch device. You can also upload and manage your own apps for publication.
This is the website where we have been providing quality reviews about the Android Apps for quite some time. Although there are many websites out there that have been giving Apps reviews and the users might get confused why they should visit us.