ToneCraft: Tuner & Metronome

Keep your instrument in tune and your rhythm steady. ToneCraft brings a chromatic tuner, metronome, speed trainer and practice timer together in one app. With dedicated tunings for guitar, ukulele, bass and violin, it fits everyday warm-ups, focused practice and rehearsal preparation.

A tuner for multiple instruments
See the note, cents deviation and pitch trend in real time, with clear feedback as you adjust your tuning. Automatic string detection helps you move between strings; manual selection keeps your chosen string as the target.
• Guitar: standard, Drop D, DADGAD, half-step down and whole-step down.
• Ukulele: standard high-G and Low G.
• Bass: standard four-string tuning, half-step down and Drop D.
• Violin: standard, half-step down, Cross A and Cross G.
• Chromatic mode: identify the nearest note without choosing a string preset.
• A4 reference pitch: adjustable from 400 to 480 Hz.

A metronome that fits your music
Keep a steady pulse for scales, chord changes, strumming or drum practice. Shape the rhythm around the passage you are working on.
• Tempo from 20 to 400 BPM, with tap tempo to find a song's pulse.
• Nine time signatures: 2/2, 2/4, 3/4, 4/4, 5/4, 6/8, 7/8, 9/8 and 12/8.
• 20 subdivision patterns, including eighth notes, triplets, sixteenth notes, dotted rhythms and rests.
• One subdivision for the whole measure, or a different pattern for each beat.
• Accented, secondary, normal and muted beats to shape your rhythm.

Build speed while you focus on playing
The speed trainer changes tempo in steps between your starting and target BPM. Choose the step size and measures per step for gradual increases or decreases. A practice timer of up to 60 minutes gives warm-ups and focused exercises their own time.

Follow the beat by sound, sight or touch
• Seven sounds: mechanical, electronic, drums, cowbell, clapper, or male and female voices counting in English.
• Full-screen beat display for a clear view of the pulse.
• Optional vibration and flashlight cues on supported devices while the app is in the foreground.
• Background and lock-screen playback for metronome audio.

Your instrument, tuning and metronome settings are saved on your device, so your next session starts with a familiar setup.

Free core features
Core tuning and metronome features are free with ads. An optional auto-renewing subscription removes ads. Manage or cancel your subscription in Google Play.

Permissions and audio
The microphone is used for pitch detection. Audio is analyzed on your device and is not saved or uploaded. Camera permission is requested only for optional flashlight beat cues; no photos or videos are captured.