vShare - vShare is an app through which you can download apps, games, wallpapers, and ringtones for your Android and iOS devices.
Altstore - A home for apps that push the boundaries on iOS
AppAddict - AppAddict is an online tool that allows you to download third-party apps on your devices without rooting or jailbreaking your devices.
Cydia - An alternative app store for jailbroken devices.
Kuaiyong - Kuaiyong brings features to install free as well as paid apps on Apple devices without jailbreaking them.
iOS Haven - A listing of tweaked apps and games for iOS devices. Install directly from the browser.