Charges you for gas even if the transaction fails, and in a world where gas can be as much as the transaction itself, this is unacceptable. I've never known this scummy practice to come from any other service or app in my couple of years of crypto trading. If it wasn't for the fact I'd already gotten this application connected to other websites and services, and still have a small amount of earnings sitting in my wallet, I'd remove this immediately. Cannot recommend this any less.