THIS WORK ON iOS 8.3 and 8.4 VERSION!!!
Follow this topic http://iosgods.com/topic/9650-tutorial-how-to-apply-save-game-hacks-on-non-jailbroken-ios-8384-and-higher/?p=270095
This is for nonjailbroken and jailbroken
Find more hacks: go here http://iosgods.com/forum/12-no-jailbreak-cheats/
For this Tut, I will use Radiation Island
http://iosgods.com/topic/4185-radiation-island-all-versions-4/
I advise you to back up your app's Documents and Library to Desktop or anywhere safe because you will never know if it will mess up and say goodbye your save data If you lost it or messed up then its not my fault. Its YOUR fault
Nonjailbroken steps:
Make sure that the app is closed from multitasking
Before:
1) Download the files and unzip it in Desktop
2) Open iFunbox or iTools
3) Find and click the Island app
Most of the time, thread would tell you where to go or where to paste it in
4) Move/Drag the new files from Desktop to the iFunbox/iTools
6) Open App and enjoy
After:
Jailbroken steps:
Make sure that the app is closed from multitasking
1) Download the files and open in iFile/Filza then unzip it
2) Copy the files and go to...
iOS 8: /var/mobile/Containers/Data/Application/Island
iOS 7: /var/mobile/Application/Island
3) Paste it and click Replace
4) Refresh by scroll down
5) Open App and enjoy
I will add screenshots later