Version history
PianoMeter – Piano Tuner
20
ASO score
Text
25/100
Reviews
0/100
Graphic
40/100
Other
0/100
App Rating
3.9
Votes
52.07K
App Age
8y 8m
Last Update
Dec 21, 2025
iAP
$0.99 - 329.99
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Installs
|
413.3K
|
121.2M
|
-100%
|
|
Rating
|
3.86
|
4.41
|
-12%
|
|
Number of Ratings (Voted)
|
44.6K
|
145.9M
|
-100%
|
|
App Age
|
8y 7m
|
7y 7m
|
+13%
|
|
In-app Purchases Price
|
$175
|
$65
|
+169
%
|
|
Update Frequency
|
85d
|
190d
|
-55%
|
|
Title Length
|
24
|
26
|
-8%
|
|
Short Description Length
|
78
|
70
|
+11%
|
|
Description Length
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2 617
|
2 897
|
-10%
|
|
Number of Screenshots
|
778
|
1237
|
-37
%
|
|
Has Video?
|
No
|
0% has videos
|
|
|
Size
|
0MB
|
0MB
|
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 28, 2025 | Jan 04, 2026 |
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No results were found!
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| Top | Dec 28, 2025 | Jan 04, 2026 |
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No results were found!
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| Top | Dec 28, 2025 | Jan 04, 2026 |
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No results were found!
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| Top | Dec 28, 2025 | Jan 04, 2026 |
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No results were found!
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Downloads
Downloads Graph
Total
412.8K
Last month
5.1K
Text ASO
Title
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Characters:
24
of 50
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PianoMeter – Piano Tuner
Short Description
(
Characters:
78
of 80
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A user-friendly app for professional-quality piano tuning. (Purchase required)
Description
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Characters:
2617
of 4000
)
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.}
Read more
Other
Additional Information
| Rating: | |
| Voted: | 52.07K |
| Google Play Link: | |
| Website: | |
| Email: | |
| Privacy Policy: | |
| Categories: | Music & Audio |
| Size: | - |
| iAP: | 0.99 - 329.99 $ |
| Installs: | 412.83K |
| App Age: | 8 years 8 months |
| Release Date: | May 21, 2017 |
| Last Update: | Dec 21, 2025 |
| Version: | 5.0.0 |
Version history
5.0.0
Dec 21, 2025
For Pro users: <br>• New Adaptive Bass Stretch auto-adjusts bass interval weights by piano size. To turn off, set Adaptive Bass Stretch to zero in Style.<br>• Interval weights rescaled (all styles migrated)<br>• Bulk-apply any style to all tunings (long press)<br>• New low stretch style (PTG/RPT exam)<br>• New tonal energy color palettes<br>• Inharmonicity weight factor now managed in tuning styles<br>For all users: <br>• Improvements to unequal temperament management and inharmonicity detection
4.1.1
Dec 11, 2025
Fix issue that was blocking some in-app purchases from working