--- title: "PianoMeter – Piano Tuner - Reviews, Revenue and Downloads in United States | Apple App Store" description: "PianoMeter is a piano tuning app that will transform your iPhone or iPad into a professional quality electronic tuning aid. NOTE The "free" version of this app is primarily for evaluation, and it onl" --- # PianoMeter – Piano Tuner — United States > Professional piano tuning ![PianoMeter App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/0a/81/25/0a812550-aefb-d765-9aec-87c73efdee51/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png) **Developer:** [Willey Piano](https://apptail.io/developer/willey-piano-hOkc) (United States) **Category:** Music **Rating:** 4.6/5 (41 ratings) **Price:** Free **Bundle ID:** com.willeypianotuning.pianometer **Store:** Apple App Store **Country:** United States **Version:** 3.2.1 (released 2026-08-18) **Original Release:** 2020-08-04 **Languages:** Swedish, Hindi, English, Finnish, French, Chinese, Greek (modern), Italian, Japanese, Korean, Dutch, Portuguese, Russian, Spanish, German, Ukrainian, Hungarian **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1515529208) **AppTail Page:** [https://apptail.io/app/pianometer-piano-tuner-KBHb/united-states](https://apptail.io/app/pianometer-piano-tuner-KBHb/united-states) ## PianoMeter Description PianoMeter is a piano tuning app that will transform your iPhone or iPad 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, PianoMeter 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 each 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 limited 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 • Multi-partial tone generator that plays the target frequencies • New colorful "Tonal Energy" display that shows a brief history of the pitch • Access to all future features and enhancements Upgrade costs: Free to Plus (approximately US$30) Free to Pro (approximately US$350) Note about permissions This app requires permission to access the microphone on your device and permission to read and write files. ## PianoMeter Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ec/e1/7d/ece17da8-344a-d4fb-04c3-951d07b809f4/610d5338-0369-48e3-8c28-5f8cd5e75dee_Apple_iPhone_11_Screenshot_0.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/49/bc/64/49bc648a-a6f4-c589-1c9e-279a4bac22ee/78a0e3bc-914c-40fa-81b8-d9218b8feb3c_Apple_iPhone_11_Screenshot_1.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/5c/b9/1b/5cb91b62-855d-bafe-1b05-d858d8d3add1/04768222-735a-4ac2-881b-1058b77b46f6_Apple_iPhone_11_Screenshot_2.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a6/1f/91/a61f9188-5593-dd09-5d5a-af78cdf50260/7724f5cf-153c-474e-bce3-cacee74ac887_Apple_iPhone_11_Screenshot_3.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0f/b0/98/0fb0987e-3c3a-6c98-4c46-54df20af6bc6/c419f079-0774-4015-a11a-558b4669a93e_Apple_iPhone_11_Screenshot_4.png/1242x2688.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/5f/01/1d/5f011d57-a8d6-5d3a-3628-5472f2144599/6a57c1b8-789c-446f-87f4-9ac641e38c5d_Apple_iPhone_11_Screenshot_5.png/1242x2688.png) ## PianoMeter Rating Breakdown in United States - 5 stars: 34 (83%) - 4 stars: 2 (5%) - 3 stars: 1 (2%) - 2 stars: 3 (7%) - 1 stars: 1 (2%) ## PianoMeter Reviews in United States ### ***** "Anthony is Awesome!" I’ve been learning to tune pianos and the Piano Meter app has been a fundamental tool. The biggest plus to this app is Anthony’s desire to continue to polishing it. I used the pitch raise feature on a Kenabe pro upright, it was within 3 cents afterwards! The custom inharmonicity curves help the piano really sing. The app has made learning to tune fun and educational! -- JamesAndrasek, 2026-07-22 ### ***** "Great app" Original post: I've been turning my own Baldwin 5 foot 8 inch grand since the early 1970s. Using just a tuning fork. Neither the bass stretch of piano meter or piano scope is pleasing to me. I'm experimenting with tune lab trial version which gives much less stretch. But tune lab has other flaws which I'm trying to correct for. Using the pianometer app as reference– Full version. Update: at this point I'd say I prefer the stretch of pianometer, plus I don't have the patience to keep retuning the bass. I think my initial dissatisfaction was because the 1974 book I learned to tune by did not incorporate any stretch in its method, plus I was mostly playing Bach then which is confined to the middle 4 octaves . at the moment I'm only playing my own composition which uses octaves in the deepest bass. Now that I've gotten used to it it seems fine. So I've changed my rating to five stars. Makes the tuning process much simpler. -- Maze canyon lands, 2026-06-08 ### **--- "Not accurate on lower octaves" Just isn’t accurate. Sadly the best tuners cost a lot more. This is okay if you are okay with not tuning your piano. -- Paulie r from oh, 2026-02-21 ### ***** "My “go to” app!" I’ve been using PM for many years now and it’s always my “go to” app. It just gets the job done and makes pianos sound great! -- That Tuning Guy, 2026-01-25 ### ***** "Outstanding diagnostic tool!" I am a Piano tech for more than 30 years. I’ve replaced tune lab pro with Piano Meter Pro as my main diagnostic app. There are a few problems with an occasional partial slip but no more than any of the other apps you can get here. NOW the big thing on this app is the graphic depiction of every note on the piano lined up with a keyboard. This gives me a visual representation that I can show to a non musician client. I sample each note into the Piano Meter App, then I take a screen shot, at the end of the tuning I repeat the process. Now I have a before and after picture for the client. Of course, the picture is a gimmick if the tuning’s not good. But this app gives me constant feedback about what the piano is doing during the tuning. Great for pitch correction! Curves are consistent to curves calculated with other diagnostic tools. Oh yeah, you do have to upgrade to professional to get those features that makes it great for the professional piano tuner. Wholeheartedly recommend! -- Maestro Mitch, 2025-12-11 ### ***** "Best piano tuner app on the store" Tried several piano apps that are either outrageously priced, novelty stuff that’s inaccurate or just esoterically incomprehensible user interfaces. This interface is clean and fast and gives you the visual and precise feedback you need while tuning. Lots of good options as well in the settings if you need to adjust -- Pangoat, 2025-10-25 ### ***** "Great tuning app (If used properly)" Once you understand how to use the app (follow the tutorial) you can achieve a very good tuning! Advice: Lock the curve before starting a tuning over a new file, make the circles stop spinning (as close as possible to “cero” on the pitch) and move on. (Do one string at a time) -- JK-12345, 2025-10-25 ### **--- "$30 upgrade won’t let you save tuning files!" I find it insane that even after paying $30 for this app, one cannot switch between tuning profiles. My 1842 Bosendorfer is currently at A/405, and my 1872 Souczek is 4 semi-tones low. I’d like to take turns working on them, but there’s no possible way I’m going to spend $300 just so I can open two profiles. I could buy a new iPhone for cheaper and buy the $30 app twice. Very disappointing. Otherwise I’d enjoyed the app. -- timeroad, 2025-10-07 ### ***** "Hidden Masterpiece for Beginners" This app is a hidden masterpiece because when used in a simple and particular manner, it can easily assist a novice tone deaf piano tuner to produce clean unisons and an excellently stretched and equally-tempered tuning. I discovered that after performing a single-strings inharmonicity mapping of the entire piano, and locking it in place. Average Immediate tuning ranges and average tuning ranges centered on 0.0 cents for every single string return clean unisons with excellent stretch and equal temperament 99% of the time. I hope to create a video showcasing this new tuning method soon! Excellent work Developer! Also, would you consider either enlarging the font size of the Average Tuning Differential on the plotting chart or granting the option for the user to manually set the font size? Thank you and thanks be to God for a Masterpiece! -- JLK521, 2025-05-23 ### ***** "Great app" The developer has worked very hard on this app and it shows. I have a few piano tuning apps and this is probably the most simple to use and most streamlined app of all of them. There is another review here complaining about the stretch compared to Yamaha keyboard. This isn’t fair because most Yamaha keyboards use concert grand pianos as their samples and this will be very different for what a smaller piano needs to be tuned to. Every piano is tuned differently. This program gives excellent tunings in the bass section based on the particular inharmonicity of the piano. Some short pianos just sound bad no matter what you do or what app you use because of the poor scaling or other factors. I tell my clients who have picky ears to download this app to help them touch up tunings on their own because of the price. The plus version is a no brainer for the picky piano owner who can’t wait for their tuner to come by. -- tim980, 2025-03-19 [View all PianoMeter reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## PianoMeter In-App Purchases | Item | Price | |------|-------| | Plus version | $29.99 | | Pro 1-year subscription | $59.99 | | Pro version | $350.00 | | Plus to Pro | $314.99 | ## PianoMeter Store Rankings | Chart | Country | Category | Rank | |-------|---------|----------|------| | Top Grossing | Portugal | Music | #47 | | Top Grossing | Sweden | Music | #91 | ## PianoMeter Discovered Keywords - tuning - piano tuning - free piano tuner - pianometer - piano tuner - pianoscope - pianometer piano tuner - tunelab piano tuner - verituner - piano tuning app ## Apps Similar to PianoMeter - [Pano Tuner Lite](https://apptail.io/app/pano-tuner-lite-Pwb/united-states) - [Tuner T1](https://apptail.io/app/tuner-t1-Byb/united-states) - [Tuner Lite by Piascore](https://apptail.io/app/tuner-lite-by-piascore-iwd/united-states) - [Tuner T1 Pro](https://apptail.io/app/tuner-t1-pro-chg/united-states) - [Pitched Tuner - Tuning App](https://apptail.io/app/pitched-tuner-tuning-app-jsr/united-states) - [Pano Tuner – Chromatic Tuner](https://apptail.io/app/pano-tuner-chromatic-tuner-hvU/united-states) - [pianoscope – Piano Tuner](https://apptail.io/app/pianoscope-piano-tuner-EALc/united-states) - [PiaTune](https://apptail.io/app/piatune-FALc/united-states) - [iTuner - Chromatic Tuner](https://apptail.io/app/ituner-chromatic-tuner-HALc/united-states) - [Pianoteq 8](https://apptail.io/app/pianoteq-8-qwmm/united-states) ## PianoMeter Available In - [United States](https://apptail.io/app/pianometer-piano-tuner-KBHb/united-states) - [Australia](https://apptail.io/app/pianometer-piano-tuner-KBHb/australia) - [Japan](https://apptail.io/app/pianometer-piano-tuner-KBHb/japan) - [Canada](https://apptail.io/app/pianometer-piano-tuner-KBHb/canada) - [Italy](https://apptail.io/app/pianometer-piano-tuner-KBHb/italy) - [Russia](https://apptail.io/app/pianometer-piano-tuner-KBHb/russia) - 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