How do I hack Stories: Choices you play!

[BlaxFly]

Link to the game: https://play.google.com/store/apps/details?id=com.pixelberrystudios.choices&hl=en_US

Publisher: Pixelberry studio

Version: Latest one, 3.0.3

What cheat: I know that diamonds and keys are server sided, cannot cheat them, or if they aren't, nobody did so far. Instead, I would like a vip cheat for the game, or if that is also impossible, to make it that when you want to advance to the next chapter, it doesn't cost a key. Would anyone be willing to make a script for it or guide me how to do it myself?