Some sources promote “Game Guardian iOS versions” that require:

to function because they need root access to modify other apps' memory. The Reality of "No Jailbreak" Downloads

While Game Guardian is generally safe to use, there are some risks and precautions to be aware of:

Three hours later, her phone was a clean slate. Her game progress? Gone. The Voracious Sovereign remained undefeated. And her saved credit card info had been used to buy $400 worth of V-Bucks in a different country.