Finally Apple has released the Pokemon GO app yesterday for iOS in the US. The game is developed by Niantic, who is also the developer of Ingress. While most nonjailbroken users got an uninterrupted experience, many users with jailbroken iOS devices have not been able to get the game up and running. The problem begins, and ends, when you launch the app, nothing happens and it crashes. The reason for this is the jailbreak detection, which causes the application to force close on iOS devices. Fortunately there is a way to get around the jailbreak detection check.
Thanks to Ryley_angus, the developer, who has released a Cydia tweak to bypass the jailbreak detection in Pokemon Go, so you can get the app running on your jailbroken iOS device.
Fix Pokemon Go Crashing
Step 1: First, you need to launch Cydia on your device and add Ryley’s repo. To do this, simply navigate to the Sources tab and tap on Edit. Then, tap on the Add button.
Step 2: Type in the following Repo address: http://ryleyangus.com/repo. Tap on the Add button and wait for a few seconds for the sources to refresh.
Step 3: Once the sources have refreshed, tap on the Repo from sources and find the Pokepatch package. Tap on it to install it.
Once the install is completed, respring your springboard and try launching Pokemon GO again. Pokémon GO should launch and work as it should on your device now. Enjoy!