Aptoide - Aptoide is a third party replacement for the traditional Google Play Store.
F-Droid - F-Droid is an interesting alternative for Android users who want to try something different and not have to use the Goole Play store all the time.
Ninite - Ninite is the easiest way to install software.
OpenAppMkt - Openappmkt · Home · About · Contact. Welcome To Openappmkt. Openappmkt Is a cydia alternative for non jailbroken devices. Install Openappmkt. Submit A app to Oppenappmkt.
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
GetJar - Discover and play paid apps and games for free.