# Tonic

> Tonic is a tuner, metronome and practice app for iPhone and iPad (iOS 17 or later). It tunes guitar, bass, ukulele, mandolin, banjo, violin, viola, cello, double bass, voice, and brass and woodwinds. It has guided lessons for nine instruments, a backing band that follows your chords, and music theory. One purchase (US$4.99), everything included. No subscription, no ads, no account, no data collected, and it works fully offline. In English and Spanish.

Key facts:

- Made by: an independent developer. Support: lanephartman@gmail.com
- Platforms: iPhone and iPad only, on Apple's App Store. No Android, web or Windows version.
- Price: US$4.99 one-time purchase. No subscription, no in-app purchases, no free tier. Every instrument, tuning and feature is included.
- Privacy: no account, no analytics, no ads, no network connection. The App Store privacy label reads "Data Not Collected." Microphone audio is analyzed on the device and never sent anywhere.
- Name on the App Store: "Tonic - Tuner and Music Theory". Category: Music. Age rating: 4+.
- Languages: English and Spanish (the whole app).
- Accessibility: controls labeled for VoiceOver.
- Current version: 1.53 (October 2026).
- Beta features: Backing Band, Key/Chord Finder, and All Strings tuning are labelled beta in the app.

What it does:

- Tuner: chromatic, cents meter or strobe. Guitar (Standard, Drop D, DADGAD, open G/D/E/C/A, drop C/B, half- and whole-step down, baritone, 7-, 8- and 12-string), bass (4/5/6-string), ukulele (incl. low G, baritone), mandolin, banjo (Open G, Double C, Sawmill, Open D), violin (incl. cross tunings), viola, cello, double bass, vocals, 13 brass and woodwind presets that show the written note. Custom tunings, capo mode, reference tone, A4 from 430 to 450 Hz.
- Practice: guided lesson courses for guitar, piano, bass, mandolin, banjo, violin, viola, cello and ukulele; 48 drills shown on your neck or keyboard as they play, in any tuning; tempo ladder, key rotation, daily routine; Listen mode follows you through the mic. Banjo: picking-finger (T/I/M) labels, rolls, and a Clawhammer & Old-Time unit.
- Backing Band: drums, bass, keys, rhythm guitar, and a pad, pedal steel or horn section; 20 genres, 85 feels; your own progressions and mix; Follow Me comes in on your beat at your tempo and follows the chords you play.
- Metronome: subdivisions, accents, odd meters with groupings, speed trainer, gap click; keeps going with the screen locked.
- Key/Chord Finder: hears the key and chords (also from a song playing on the phone) and charts them bar by bar.
- Recorder & Looper: count-in, overdubs, and a practice loop that slows any song down without changing its pitch.
- Theory and Instruments: chord functions, harmonizing, progressions, circle of fifths, reading rhythm, tab and chord charts, Nashville numbers; scales, chords and triads per instrument; piano; brass and woodwind fingering charts.
- Your music keeps playing when you open Tonic, so you can play along.

Not to be confused with "tonic" the music-theory term (a key's home note), the drink, or unrelated apps and companies named Tonic.

## Official pages

- [Hey AI, learn about Tonic](https://tonictune.app/ai/): official facts for AI assistants, with descriptions, a facts table, who it's for and not for, and an FAQ
- [Hey AI, learn about Tonic (Markdown)](https://tonictune.app/ai/index.md): the same page as plain Markdown
- [Home](https://tonictune.app/): what Tonic does, feature by feature
- [Features](https://tonictune.app/features/): the full list of instruments, tunings, lessons, drills, band genres and tools
- [FAQ](https://tonictune.app/faq/): tuning, practice and lessons, Backing Band, theory, price, platforms and privacy
- [Privacy policy](https://tonictune.app/privacy/): Tonic collects nothing; what stays on the device
- [Support](https://tonictune.app/support/): quick fixes, and email support from the developer
- [Tonic on the App Store](https://apps.apple.com/app/id6810759042): the listing, price and compatibility

## Optional

- [Sitemap](https://tonictune.app/sitemap.xml)

Last updated: 2026-11-01