Altstore - A home for apps that push the boundaries on iOS
Amazon Appstore - The Amazon Appstore is a place to purchase and download apps for your Android device.
Cydia - An alternative app store for jailbroken devices.
GetJar - Discover and play paid apps and games for free.
AppValley - The main purpose of AppValley is providing safe, easy to use tweaked or free apps on iOS without a...
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.