PiaTune vs APTuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PiaTune
This app assists professional piano tuners and enthusiasts in achieving precise piano tunings. It offers a simple, fast, and reliable method for measuring inharmonicity and setting tuning parameters, with advanced features for voicing and beat measurement.
- Professional-grade piano tuning
- Measures inharmonicity quickly
- Customizable tuning parameters
- Voicing and beat measurement tools
- Precise to +/- 0.01 cents
- Supports various piano types
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PiaTune is a professional-grade piano tuning app designed for professional piano tuners and tuning enthusiasts. PiaTune tunes the piano like an aural tuner would tune. FREE VERSION Free version is fully functional and comes with 500 free notes. After free notes expire, measurement is disabled. You can continue to view files and access menu items. PAID VERSION You can remove limitations by upgrading to paid version through In App Purchase. Paid Version price is US$ 99.99. PiaTune is your simple, fast, reliable, precise and versatile tool to assist you in your tunings. SIMPLE Using PiaTune is simple. Just select piano size, measure or sample inharmonicity, set tuning parameters and start tuning. FAST PiaTune measures inharmonicity of all 76 notes in just a few minutes. Or you can sample a few notes and fill in the rest automatically in just a few seconds. Built-in generic files let you start an “out of the box” tuning right away. Measure starting pitch, smooth, trend data and transfer to use for over pull. You can also use on the fly over pull starting pitch measurements. RELIABLE Be it a spinet, console with poor scale design or a concert grand, PiaTune always calculates an optimum tuning curve. You can set stretch options for bass, middle and treble while observing the best fit tuning curve. PRECISE PiaTune is precise to +/- 0.01 cents. VERSATILE Besides tuning functionality, PiaTune also offers screens that help with Voicing and Measuring Beats. For more information visit https://piatune.com
APTuner
This application provides highly accurate chromatic tuning for a wide range of instruments. It features a clear interface, customizable settings, and the ability to detect note deviations with precision.
- Automatic note and cent deviation detection
- Accurate to 1/1000 semitone
- High contrast, high visibility UI
- Instrument presets
- User selectable noise threshold
- Settable A4 frequency
- Historical temperaments
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Features: + Automatically detects the note and cent deviation for a wide variety of instruments + Accurate up to 1/1000 semitone (0.1 cent) + High contrast, high visibility user interface + Instrument presets + User selectable noise threshold + Settable A4 frequency + Frequency table + Select and edit historical temperaments
Screenshots
Verdict
The clearest difference is rating: APTuner at 5.0 against PiaTune's 4.4. APTuner also leads on in-app purchases (none vs 1) and review sentiment (100% vs 78%). PiaTune's advantage is update cadence (every 10 days vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PiaTune sells 1 one-off in-app purchase. APTuner asks for nothing beyond the download.
APTuner holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 11 and 6 respectively. Written reviews point the same way: 78% of PiaTune's written reviews are positive against 100% of APTuner's.
PiaTune ships an update every 10 days, APTuner every 3 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.
| Parameter | PiaTune | APTuner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (11 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 77.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 11 — better | 6 |
| Update frequency | Every 10 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 49 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | HAKKI BAYKA | Joseph Broms |
Customer experience
PiaTune
APTuner
In-app purchases
PiaTune
- Upgrade to Paid Version$99.99
APTuner
No in-app purchases
