Tuner•
Piano, Guitar, Flute, Guzheng
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Seven instruments, seven purpose-built tuners. Guitar, bass, piano, guzheng, pipa, kalimba and bamboo flute — accurate to a fraction of a cent.
Most tuners give every instrument the same screen. Tuner Master doesn't.
Pick your instrument and you get a tuner built for it: a guitar headstock with the pegs where they actually are, an 88-key piano keyboard that scrolls to the note you just played, a guzheng board with all 21 strings and the bridges laid out on the diagonal, a kalimba with its tines in the real alternating order.
ACCURATE WHERE IT MATTERS
Tuner Master uses the McLeod pitch method with FFT-based autocorrelation — the same family of technique used in professional tuning software. It reads everything from the low B of a 5-string bass to the top C of a piano, and it doesn't jump an octave when your instrument has strong overtones.
SEVEN INSTRUMENTS, SEVEN SCREENS
• Guitar — 6 strings, pegs split left and right like the real headstock
• Bass Guitar — 4 and 5 string, built for the deep low range
• Piano — all 88 keys, A0 to C8, scrolling keyboard
• Guzheng — 21 strings in D pentatonic with movable bridges
• Pipa — 4 strings, A-D-E-A
• Kalimba — 17 tines in C, laid out exactly as on the instrument
• Bamboo Flute — check your intonation note by note as you play
BUILT FOR HOW YOU ACTUALLY TUNE
• Tap a string to hear its reference tone
• Auto mode follows whichever string is closest, and holds steady instead of jumping between them
• A moving pitch trail shows whether the note is settling or still drifting
• A gentle buzz confirms the moment a string is right — and only after it has held for a full second, so a needle sweeping past the centre never fools you
PREMIUM (one purchase, yours forever)
• Alternate tunings: Drop D, DADGAD, Open G, Open D, half step down, 5-string bass, G pentatonic guzheng, G-C-D-G pipa, 21-key kalimba
• Reference pitch from 415 to 466 Hz, plus transpose — for period instruments and ensemble work
• Chromatic Pro: any note from A0 to C8, with your choice of how strict the in-tune range is
• No ads, and a log of everything you have tuned
Free includes all seven instruments at standard tuning. No account, no subscription, nothing to sign up for. Audio is processed on your device and never recorded or uploaded.
Ratings & Reviews
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The developer, Nguyen Hieu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nguyen Hieu
- Size
- 35.9 MB
- Category
- Music
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Vietnamese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium Lifetime $3.99
- Copyright
- © 2026 HSH Instruments