Request Using cheat codes for iPhone- newbie help!

[ChristyP 0 iPhone 6s Plus 11.2.6]

I’m not sure if I’m asking this in the right place or not but I have a very newbie problem!

 I have my first iPhone and I’ve been playing app games and I see people offering cheat codes for various apps and I want to try them but even though I’ve searched for a beginners guide I just can’t seem to find information on how to use the codes!

As in where do I input the codes themselves. I know you’re probably thinking, what an idiot! But I just can’t figure it out 

[Klepto 7.8k iPhone X 14.5]

You should look into Jailbreaking, which is required to use most cheats, although not needed for some. You should start there first. 

[Ken313 3 iPhone 8 11.3.1]

I have a question regarding Marvel Contest of champions. Is there any way you guys can do unlimited units hack & energy refills? Is that possible? ios?

Updated July 13, 2018 by Ken313

[ChristyP 0 iPhone 6s Plus 11.2.6]

Ok thanks Ken