It’s not really a cliche, no more than saying ‘thank you’ to somebody for holding a door open, buying you a drink or giving you a present is a cliche. It’s just common courtesy I guess, and although I wouldn’t really have any feelings either way if it didn’t say thanks… it’s unlikely I’ll be scoring down the item, writing a formal complaint, or asking support for my money back if somebody says ‘thanks for buying my item’.
I agree with you, saying ‘Thanks for buying my item’ is not a cliche and won’t hurt anyone, at all.
Great achievement man, I’m really happy for you
Awesome work, just tested on an iPhone and worked great.