How to install Nicegram on your Jailbroken iOS Device
PancakeufoRequirements:
Method:
- Open this channel 
 - Download the latest ipa file
 - When the download has completed do the following steps:
 - Press Install and be patient
 - When a “Successful” pop-up appears close the app and you’ll find Nicegram on your SpringBoard (a.k.a Home Screen)
 
Troubleshooting:
“I got the “succesful” pop-up but Nicegram didn’t appear on my SpringBoard”
“The app is not working when I reboot my device / when the device is not jailbroken ”
- AppSync Unified patches install to allow the installation of unsigned IPA packages (like the Nicegram one) so when the phone is not jailbroken, for example after a reboot, the system will block the app from opening since it’s not signed.
 
“I got a ‘Failed’ pop-up when trying to install Nicegram”
You can read the source here.