A violin tuner and metronome
made for daily practice.
A tuner, metronome and practice tool for everyday playing. Switch the four open strings — G3, D4, A4, E5 — right on the peghead, keep time from 40 to 208 BPM with a metronome scheduled on audio samples, and practice major scales and arpeggios in C, G, D and A note by note on the staff.
In tune
On the beat
Progress you can see
Tuning · metronome · practice
Tuner · switch strings on the peghead
Bowing is measuring · no extra menus · instant lock
Violin tuner Precise, fast acoustic calibration
Modelled on how a violinist actually tunes: the four open strings sit right where the pegs are, with no menus to dig through. A large note name and a pointer take you straight to pitch — bow, read, adjust.
Four open strings, one glance: G3, D4, A4 and E5 line up with the pegs on the peghead, so you tune without switching menus.
±5 cent green safe band: the pointer locks as soon as it enters the central green zone, with a large note name and cents value.
Live intonation trace: the last few seconds of pitch are drawn as the note settles, so you can see it come into tune.
One-tap A4 reference: switch between 440 and 442 Hz for solo practice or orchestra tuning.
Metronome 40 to 208 BPM · pendulum and dial
From the calmest Largo to Prestissimo, the beat is scheduled on audio samples. Move to the background or turn the screen off: it stays steady, with no dropped or drifting beats.
40 to 208 BPM, the full range: every tempo mark from Largo to Prestissimo, with tap tempo and ± fine adjustment.
Nine meters: 2/4, 3/4, 4/4, 2/2, 3/2, 3/8, 6/8, 3/16 and 6/16 — enough for études, concertos and complex movements.
Eight subdivisions with accents: set accents and weak beats on each pulse to work on rhythmic shape and bowing.
Two visual styles: a physically faithful pendulum, or a dial and beat bars that light up beat by beat.
Steady with the screen off: scheduled on audio samples, so the beat stays exact on the lock screen.
Metronome · two visual modes
Pendulum and modern dial
Scores · follow the staff note by note
C / G / D / A major scales and arpeggios · advances when in tune
Scales and arpeggios Practice note by note on the staff and see which note is off
Built-in daily basics: major scales and arpeggios in C, G, D and A, practiced note by note on the staff. Land a note and it moves on, catching pitch drift as you play.
The core major keys: scales and arpeggios in C, G, D and A, practiced note by note on the staff.
Land it and move on: the current note is red, turns green once it is in tune, and the staff jumps to the next note.
Session stats: every practice records duration, accuracy and score.
Three-stage breakdown: attack, sustain and release for every note, plus the whole intonation curve — you see at a glance which note slipped.
Plain tools, built for everyday practice
Designed around how violinists actually practice: nothing interrupts, just quiet, focused acoustic calibration.
Dark, easy on the eyes
Still soft and legible in a dim practice room or at the side of the stage, so your attention stays on the bow and the fingers.
Focused · no ads
No pop-ups, banners or video ads breaking the flow — a clean space for serious players.
Scheduled on audio samples
The beat is driven by audio samples, so it stays steady with the screen locked or the app in the background.
Six official languages
English, Simplified Chinese, Traditional Chinese, French, Spanish and Portuguese — usable for learners anywhere.
Use the core tools free, or join Hatsing Member
One account across every Hatsing app and the hatsing.com score library.
Daily tuning and basic rhythm practice out of the box, with no pop-up ads.
- check Four open strings (G3, D4, A4, E5) tuned on the peghead
- check ±5 cent green safe band and settling trace
- check 440 Hz and 442 Hz reference with tone playback
- check 40–208 BPM metronome, pendulum and block views
- close Unlock 6 advanced metronome sounds
- close Unlimited practice records with attack, sustain and release analysis
Advanced metronome sounds, unlimited practice records and every violin score on hatsing.com.
- check Unlock 6 advanced metronome sounds
- check Unlimited practice records, with per-note accuracy and curves
- check Every violin score on hatsing.com: full pages, playback and printing
- check One membership, everywhere: one account across all Hatsing apps and the website
- check Manage or cancel anytime in Google Play
Violin Tuner·Metronome·Scores
The acoustic toolkit every violinist needs
For Android phones and tablets. The dark interface is designed for practice on a music stand, and everything works offline except account and membership checks.
