QuentisL

QuentisL puts two practical instruments in one landscape workspace, so a guitarist and maker never have to reach for a second app.

Fret Atlas turns the entire neck into a map. Pick a root note, choose a scale or chord and set your tuning: the key instantly illuminates each matching note across the frets, marked with interval labels or common note names. Tap a fret to hear its tone, flip the board for left-handed play, and save a voice to return to later.

True Level is a true spirit level built on your device's motion sensors. Rest the phone on any surface and read the tilt of a long bubble bottle and a rose together. Switch the readout between degrees, percent slope and roof slope, hold a measurement in place or zero its level against a reference edge, then save it.

Whatever you save from either tool is in one place. Open a snapshot for the full breakdown and pass it along with the system share sheet. No account and no network: every note and reading stays on your device.

Inside you get eleven scales, ten chord shapes, five tunings, three level units, tap-to-hear notes, and saved snapshots to share.