I made a guitar tuner app using Flutter and Rust
There are two Drop D tunings listed and one is actually Drop C. There is no Drop D♭, you call it Drop C♯ which while it's technically the same set of tones, it's now how guitar players think of it. You have the same issue with E♭ Standard. Each of your notes in these tunings are listed as sharps instead of flats, which is not how guitar players think of the notes in these tunings.<p>Also, you might want to consider polyphonic tuning. That's what would set you apart from everybody else. I bought a TC Electronic PolyTune earlier this year and it's been a game changer. It's much faster and easier to get tuned