Mistap

If the controls are crammed together, mistaps may happen.

Sorry for down voting, I'm on phone currently and it was a mistap

Some buttons are too close in this app, you will often mistap.

While the simplicity of the app's UI is great, it's just a nightmare to navigate. Tiny buttons to change cards, not intuitive at all. Oh!... and then, there is an ad stripe, perfectly placed at the bottom of the screen, so it's easily mistapped whenever you feel like closing the app. Great potential, abysmal execution.