I'm not satisfied about the app it took me ages to be able to buy crypto and there are less options for cryptos I can buy,the app is messed up

I'm not satisfied about the app it took me ages to be able to buy crypto and there are less options for cryptos I can buy,the app is messed up. When I open the app it doesn't allow me to unlock it,it just opens without requiring security codes and that is safety issue.. anyone can use my app. It's not safe. The previous version was better than this 🚮