RebelTuner

RebelTune is a chromatic instrument tuner built for rebels, rockers, and working
musicians who want accuracy without the corporate polish.

Tune guitars, basses, ukuleles, and any stringed instrument with a fast YIN
pitch-detection algorithm that locks on in milliseconds. Watch the needle
spring into place, feel the UI heartbeat when you land in tune, and get on with
playing.

KEY FEATURES

• Chromatic tuning — any note, any octave, ±1 cent accuracy
• Built-in presets — Standard, Drop D, DADGAD, Open G, Open D, Half-Step Down,
bass 4/5-string, ukulele, and more
• Custom tunings — build your own and save them
• Repertoire — attach tunings to songs so you can switch mid-setlist
• QR tuning sharing — share your custom tuning with bandmates via QR code
• Adjustable A4 reference (415–465 Hz) for orchestral or period work
• Mic sensitivity and noise-gate controls for loud rehearsal spaces
• Reference tones — sine or plucked, hold the pick to sustain
• Five visual themes — RebelStage, IslandFire, MidnightBlues, SkullAndBones,
RebelutionVibes — and a theme customizer if none of those hit
• Runs fully offline. Your audio never leaves the device.

The vault is on-device only; nothing syncs, nothing is recoverable if you lose
your sequence.

WHY REBELTUNE

Most tuners are either locked behind subscriptions, littered with ads, or
styled like dentist-office software. RebelTune is free, has no ads, no
trackers, and no network calls. Just a fast tuner with attitude.

PERMISSIONS

• Microphone — required to detect pitch from your instrument. Audio is
processed locally and never transmitted.
• Camera — optional, used only when you scan a QR tuning code.

PRIVACY

RebelTune collects nothing. No analytics, no crash reporting, no account
required. The full privacy policy is at https://privacy.sassyconsultingllc.com/tuner/index.html