Gemtweaks located at gemtweaks.com, which claims to be free apps tweak for iOS and Android, is a scam. The website attracts visitors by claiming to provide free keys and a money generator. But, the scammers behind the fake website generate income by tricking online users into visiting spam websites and showing them annoying popup advertisements. They also make income from surveys, which they trick visitors into completing. But, it doesn't matter how many surveys the visitors complete, they will never get the money or keys they were promised.