Read the cheat features. It doesn't say Free iAP included, you're trying to buy stuff in-game cost $ which is iAP
The cheat offered Freeze Currencies and Unlimited Currencies (Spend to Gain). So everytime you spend in-game currency (like coin/ gem to upgrade hero, etc ...) it will freeze your amount. For Unlimited Currencies (Spend to Gain), assume the upgrade cost 10 gold and you do the upgrade, instead of subtracting your 10 coin it will add 10 coins everytime you spend. Only use 1 option (I prefer Freeze because it more safe and look legit)
For damage/ defense multiplier after you set value you need to turn the cheat on (tap on it) like the rest options