I'm a guitar player wannabe and I couldn't find a simplest app that's clear, without ads and .. free , so I made one myself.
It's stupid simple, it just displays diagrams for guitar chords, scales and arpeggios. Name stands for No Bullsh**
There might be some errors in the diagrams as I made them all by hand, no fancy generators. If you spot any erros, let me know or fix it yourself if you are a developer.
Reviews always helpful !
Enjoy!