PianoMeter – Piano Tuner MOD APK v5.1.2 [Unlocked / Pro / AOSP compatible] for Android
A user-friendly app for professional-quality piano tuning. (Purchase required)
📋 MOD APK Details
📅 Updated
2026-05-06
📱 App Name
PianoMeter – Piano Tuner
🔢 Latest Version
v5.1.2
🎮 Genre
Music Audio
👨💻 Developer
Willey Piano
📦 File Size
7.43 MB
🤖 OS Version
Android 8.0+
⚡ Mod Features
Unlocked / Pro / AOSP compatible
🔑 Package Name
com.willeypianotuning.toneanalyzer
📥 Get it On
Google Play Store
🎯 MOD Features
◉ Pro Features Unlocked
◉ AOSP Compatible / No Google
◉ All debug Info Removed
- ✓ Unlocked / Pro / AOSP compatible
- ✓ No Root Required
- ✓ Verified Working
- ✓ No Malware
- ✓ Free Download
📸 Screenshots
📖 App Description
PianoMeter is a piano tuning app that will transform your Android device into a professional quality electronic tuning aid.
NOTE
The "free" version of this app is primarily for evaluation, and it only allows you to tune notes on the piano between C3 and C5. To tune the entire piano you will need to buy an upgrade through an in-app purchase.
What makes PianoMeter unique
Unlike regular chromatic tuning apps that simply tune to a pre-calculated equal temperament, this app actively measures the tonal characteristics of each note and automatically calculates the ideal “stretch” or offset from equal temperament. In other words, it creates a custom tuning for your piano with the best compromise between intervals like fifths, fourths, octaves, and twelfths, the way aural piano tuners do when fine-tuning.
Functionality and pricing
There are three levels of functionality: a free (evaluation) version, a paid "plus" version with basic tuning functionality, and a "professional" version with features geared towards professional piano tuners. The extra functionality is unlocked through one-time in-app purchases.
The Free version includes the following functionality:
• Tuning functionality for the mid-range of the piano only
• Automatic note detection
• Ability to measure each note on the piano to see how its current tuning compares to the ideal tuning curve (see if a piano is roughly in tune)
• Swipe in the graphing area to show a live frequency spectrum or the inharmonicity of measured notes.
Upgrading to "Plus" adds the following functionality:
• Tuning functionality for the entire piano
• Tune to frequency standards other than A=440
• Tune to historical or custom temperaments
• Calibrate device to an external frequency source
Upgrading to Professional unlocks all features of the "Plus" version, plus the following:
• Save and load tuning files, so a piano doesn't need to be re-measured each time it is tuned
• Pitch raise mode that calculates overpull for an initial first pass "rough" tuning (for pianos that are extremely flat)
• Custom tuning styles: create a custom tuning curve by adjusting interval weighting and stretch
• Access to all future features and enhancements
Upgrade costs:
Free to Plus (approximately US$30)
Free to Pro (approximately US$350)
Plus to Pro (approximately US$320)
Note about permissions
This app requires permission to access the microphone on your device and permission to read and write files.
NOTE
The "free" version of this app is primarily for evaluation, and it only allows you to tune notes on the piano between C3 and C5. To tune the entire piano you will need to buy an upgrade through an in-app purchase.
What makes PianoMeter unique
Unlike regular chromatic tuning apps that simply tune to a pre-calculated equal temperament, this app actively measures the tonal characteristics of each note and automatically calculates the ideal “stretch” or offset from equal temperament. In other words, it creates a custom tuning for your piano with the best compromise between intervals like fifths, fourths, octaves, and twelfths, the way aural piano tuners do when fine-tuning.
Functionality and pricing
There are three levels of functionality: a free (evaluation) version, a paid "plus" version with basic tuning functionality, and a "professional" version with features geared towards professional piano tuners. The extra functionality is unlocked through one-time in-app purchases.
The Free version includes the following functionality:
• Tuning functionality for the mid-range of the piano only
• Automatic note detection
• Ability to measure each note on the piano to see how its current tuning compares to the ideal tuning curve (see if a piano is roughly in tune)
• Swipe in the graphing area to show a live frequency spectrum or the inharmonicity of measured notes.
Upgrading to "Plus" adds the following functionality:
• Tuning functionality for the entire piano
• Tune to frequency standards other than A=440
• Tune to historical or custom temperaments
• Calibrate device to an external frequency source
Upgrading to Professional unlocks all features of the "Plus" version, plus the following:
• Save and load tuning files, so a piano doesn't need to be re-measured each time it is tuned
• Pitch raise mode that calculates overpull for an initial first pass "rough" tuning (for pianos that are extremely flat)
• Custom tuning styles: create a custom tuning curve by adjusting interval weighting and stretch
• Access to all future features and enhancements
Upgrade costs:
Free to Plus (approximately US$30)
Free to Pro (approximately US$350)
Plus to Pro (approximately US$320)
Note about permissions
This app requires permission to access the microphone on your device and permission to read and write files.
📜 Version History
Version v5.1.0
Updated 2026-03-19
Size: 7.47 MB
Download v5.1.0
❓ Frequently Asked Questions
Is PianoMeter – Piano Tuner MOD APK safe to install?
Yes! PianoMeter – Piano Tuner MOD APK is security-checked before publishing and includes a "Safe Verified" status on our platform. We scan every file for viruses, malware, and spyware before making it available for download.
Does PianoMeter – Piano Tuner MOD APK require Root access?
No, this MOD APK does not require root access. SafeMod provides "No-Root" versions for the majority of mods, ensuring your system's core security remains intact. Simply download and install like any normal APK file.
How do I update PianoMeter – Piano Tuner MOD APK safely?
To update, simply download the latest version from SafeMod and install it over the existing one. You don't need to uninstall the old version (this keeps your game data safe). Never update modded apps through the Google Play Store.
What are the MOD features included?
This MOD version includes: Unlocked / Pro / AOSP compatible. These features provide unlimited in-game resources, unlocked premium content, ad-free experience, and enhanced gameplay.
How to install PianoMeter – Piano Tuner MOD APK?
1. Download the MOD APK file from SafeMod
2. Enable "Unknown Sources" in your device settings
3. Open the downloaded file and tap "Install"
4. Wait for installation to complete
5. Open and enjoy the modded features!
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