Sideload apps: Follow developer instructions to add to your phone. Not common. Risky: Jailbreak an iOS device and load apps to it. This article explains how to get apps that are not in the App Store ...
The Cydia Store is the go-to spot for apps that run on jailbroken iPhone, iPad, and iPod touch devices. But Cydia is only available on your device and searching for apps can be kind of slow, clunky, ...