Rosin: Violin Tuner
Appril Pty Ltd Music & Audio In-app purchases
The precise tuner built specifically for violin, viola, cello, and double bass.
- Downloads
- 24+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Sep 14
- 2026 · v1.2.4
Screenshots
About Rosin: Violin Tuner
The first thing you do is rosin your bow. The second thing you do is tune.
Generic guitar tuners don't understand the unique overtones and frequencies of a bowed string. Rosin is a beautifully designed, highly accurate chromatic tuner built exclusively for the orchestral and acoustic string player.
Whether you are practicing in your bedroom, warming up in the orchestra pit, or preparing for a gig, Rosin’s custom algorithm isolates your pitch instantly, giving you stage-ready accuracy without the clutter.
FEATURES:
• Tailored for Strings: Dedicated modes for Violin, Viola, Cello, and Double Bass.
• Advanced Temperaments: Switch between Equal Temperament and Just Intonation (JI) to perfect your ensemble intonation.
• Highly Accurate Chromatic Engine: Catch every micro-tone on a gorgeous, high-contrast display.
• Adjustable Calibration: Easily adjust your base frequency (A=440Hz, 442Hz, etc.) to match your orchestra or piano.
• Reference Tones: Play pitch-perfect audio tones to tune by ear or practice with a drone.
• Distraction-Free UI: A sleek, dark-mode design that looks beautiful and reads clearly on your music stand from a distance.
Built by musicians, for musicians. Prepare for a perfect performance with Rosin.
Generic guitar tuners don't understand the unique overtones and frequencies of a bowed string. Rosin is a beautifully designed, highly accurate chromatic tuner built exclusively for the orchestral and acoustic string player.
Whether you are practicing in your bedroom, warming up in the orchestra pit, or preparing for a gig, Rosin’s custom algorithm isolates your pitch instantly, giving you stage-ready accuracy without the clutter.
FEATURES:
• Tailored for Strings: Dedicated modes for Violin, Viola, Cello, and Double Bass.
• Advanced Temperaments: Switch between Equal Temperament and Just Intonation (JI) to perfect your ensemble intonation.
• Highly Accurate Chromatic Engine: Catch every micro-tone on a gorgeous, high-contrast display.
• Adjustable Calibration: Easily adjust your base frequency (A=440Hz, 442Hz, etc.) to match your orchestra or piano.
• Reference Tones: Play pitch-perfect audio tones to tune by ear or practice with a drone.
• Distraction-Free UI: A sleek, dark-mode design that looks beautiful and reads clearly on your music stand from a distance.
Built by musicians, for musicians. Prepare for a perfect performance with Rosin.
What’s new
Version 1.2.4 · Updated September 14, 2026
Improved stability.
User reviews
Very precise and sensitive. It can detect even low volume tones that many other apps miss. it's also highly versatile, not just for violins or other string instruments, but for tuning a wide range of instruments, including wind instruments. Accurate, responsive, and reliable.
Alternatives to Rosin: Violin Tuner
Looking for apps like Rosin: Violin Tuner? Here are 6 similar Android apps on Google Play. The highest rated is Ear Gym: Ear Training & Theory (4.8/5), and all 6 are free to download.
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| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| Rosin: Violin Tuner | – | Free | 10+ | Sep 14, 2026 | |
| Ukulele Tuner | 4.8 / 5 | Free | 500,000+ | Mar 18, 2025 | Compare |
| Fender Play: Music Lessons | 4.4 / 5 | Free | 1,000,000+ | Aug 11, 2026 | Compare |
| Flute Lessons - tonestro | 4.5 / 5 | Free | 100,000+ | Oct 5, 2026 | Compare |
| Ear Gym: Ear Training & Theory | 4.8 / 5 | Free | 100,000+ | Aug 30, 2026 | Compare |
| Music Theory Companion | 4.4 / 5 | Free | 500,000+ | Sep 30, 2026 | Compare |
| Trombone Lessons - tonestro | 4.6 / 5 | Free | 100,000+ | Oct 27, 2026 | Compare |
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