APK Pure - Download apk for Android with APKPure APK downloader. NoAds, Faster apk downloads and apk file update speed. Best of all, it's free
Aptoide - Aptoide is a third party replacement for the traditional Google Play Store.
Android Freeware - Android Freeware is a dedicated platform for those Android users who want to enjoy quality and reviews Android apps and games for free.
AndroLib - AndroLib is a free source over the internet that allows the Android smart devices users to get an instant and probably the free access to all kind of Android apps and games available in the Android Market over the internet.
APKMirror - Android Market and APK Downloads
Phandroid - Phandroid is a website where you can get your favorite Android apps downloaded for free.