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
Cydia - An alternative app store for jailbroken devices.
APKMirror - Android Market and APK Downloads
IPackager - IPackager is an app for non-jailbroken devices and installs many Cydia tweaks without the need of a...
Mobango - Mobango is an alternative Android market.
Apple App Store - Install apps on your iDevice via the App Store.