Like our moms used to say, "Well, don't do that then." Keys and phones do not make a good pair. Why would you put your keys on top of your phone anyway? That is your bad. If I stored my phone in the silverware drawer, is it the phone's fault if it scratches? Plus, no one ever claimed GG is scratch proof, just scratch resistant. My advice is if you can offer your phone a dedicated pocket, aren't going to set your keys down on top of it, and will take some care with it, you don't need a screen protector.
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