By default, you can’t delete the Cydia app unless you decide to unjailbreak your iOS device or restore it via iTunes.
With the recent jailbreak release, it might be easier than you think. It’s not that they’ve added a feature to delete Cydia but because more errors are popping up on our screen.
As a result, we have to do a lot of troubleshooting and sometimes, you might be deleting or modifying something you shouldn’t. That recently happened to me. Thank god someone from the r/Jailbreak (/u/CanadianLog) was able to figure out a way to get Cydia back.
How to re-install Cydia after deleting the app
- The following tweaks must be installed: iFile or OpenSSH (for iFunbox or other file managers to work)
- For the sake of this timeline, click here on your device to download the .deb
- Tap on “Open in iFile.”
- Choose the file you just downloaded and tap on Installer
- Wait for about a minute
The last thing you want to do is reboot your iPhone or iPad.
As soon as you perform this step, your regular jailbreak should be resumed. In other words, you should see the Cydia icon sitting on your home screen.
In Step 2 above, I mentioned something about the timeline. The link above is for those of you who are on iOS 9–9.3.3.
If thing changes in the future and you have the same problem again the above link might not work anymore. Here is the best place http://apt.saurik.com/debs/ to find the updated package.