# Piano Tuner - High Precision — Check the pitches of the piano > High-precision piano tuning and pitch checking application. (iPhone/iPad app by 海 林.) - Source: https://appshunter.io/ios/app/piano-tuner-high-precision/id1476548341 (this page in markdown: same URL + `.md`) - Developer: [海 林](https://appshunter.io/developer/754421888) - Category: Music, Productivity - Price: Free with in-app purchases - Rating: 4.60/5 from 155 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 22 MB - Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan) - Released: 2019-10-10 - Data updated: 2026-08-28 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/piano-tuner-high-precision/id1476548341/reviews.md ## What is Piano Tuner? For the pianist, use the app to check the pitches of the piano and determine whether it needs to be tuned. For piano tuner, the app helps you to tune the piano. The app has 3-day trial. During the trial, you can tune every key of piano, experience full features. After the trial, you can only tune he middle C key(key 40). You can tune all keys after buying in-app purchase. ## Key features - Check piano pitches - Determine tuning needs - Assist piano tuners - Full feature trial - Unlock all keys via in-app purchase ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Piano Tuner | $2.99 | one-time | ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/piano-tuner-high-precision/id1476548341/reviews.md ### 5/5 — Great tool with a huge range! *2022-01-17, version 1.0* This is a great tool for tuning - I use it for my 47 string Pedal harp ### 2/5 — Non abbastanza precisa *2021-05-11* Non perfetta. Ho chiesto un rimborso ### 3/5 — Needle *2021-03-24* Needle is not stable ### 5/5 — Fantastically simple app! *2021-03-08* Request: It’d be great if it showed the appx measurement in text somewhere (both relative tuning in cents and relative frequency would be perfect). I’m using this app to record the tuning of my out-of-tune upright rather than to actually tune it. (The piano’s got a great parlor/ragtime feel to it and I’d love to be able to reproduce it) Other than that, this app is great for checking the key-by-key tuning of a piano. It’s simple to use, “auto” mode works great, and the piano-keyboard visualization that shows what key it thinks your pressing... absolutely fantastic idea! (I’ll post this as a review on the app store too. Thanks for making this tool!) ### 5/5 — Muy bueno Piano Tuner *2020-09-19* Lo he probado con un teclado Roland recién estrenado y acertó las 88 teclas con mucha precisión. Muy OK ### 2/5 — Not accurate *2020-09-02, version 1.0* Not accurate at all ### 4/5 — Great app *2020-05-07* Nice app, simple and easy to use. ## Frequently asked questions about Piano Tuner ### What does the Piano Tuner app do? The app allows pianists to check the pitches of their piano to see if it needs tuning. It also serves as a tool for professional piano tuners to assist them in the tuning process. ### How can I access all features of the Piano Tuner app? The app offers a 3-day trial during which you can tune every key and experience all features. To permanently access all tuning capabilities after the trial, you will need to make an in-app purchase. ### What happens after the trial period ends? After the 3-day trial, your access will be limited to tuning only the middle C key (key 40). To regain the ability to tune all keys, an in-app purchase is required. ### Is this app compatible with all pianos? The app is designed to check and tune the pitches of pianos. While not explicitly stated, its functionality is based on audio input, suggesting it should work with any acoustic piano. ### What is the cost of the Piano Tuner app? The app is free to download and offers a 3-day trial with full features. After the trial, a one-time in-app purchase is available to unlock the ability to tune all piano keys. ## Version history (last 1 release) ### 1.0 — 2019-10-11 No release notes. ## Apps similar to Piano Tuner | App | Rating | Price | Category | | --- | --- | --- | --- | | [Pano Tuner Lite](https://appshunter.io/ios/app/pano-tuner-lite/id449780743) | 4.7 (7,639) | Free | Music | | [Tuner T1](https://appshunter.io/ios/app/tuner-t1/id453056916) | 4.5 (10,205) | Free | Music | | [Tuner Lite by Piascore](https://appshunter.io/ios/app/tuner-lite-by-piascore/id635828559) | 4.5 (9,949) | Free | Music | | [Tuner & Metronome -Soundcorset](https://appshunter.io/ios/app/tuner-and-metronome-soundcorset/id918055824) | 4.2 (997) | Free | Music | | [Pitched Tuner - Tuning App](https://appshunter.io/ios/app/pitched-tuner-tuning-app/id1457541750) | 4.6 (5,144) | Free | Music | | [Metronome+](https://appshunter.io/ios/app/metronome-plus/id434136233) | 4.5 (1,199) | Free | Music | ## More apps by 海 林 - [Guzheng Tuner](https://appshunter.io/ios/app/guzheng-tuner/id906959961) - [Ticketer](https://appshunter.io/ios/app/ticketer/id993436135) - [Distance Measurer](https://appshunter.io/ios/app/distance-measurer/id1001467451) - [Erhu Tuner For Dummies](https://appshunter.io/ios/app/erhu-tuner-for-dummies/id1002914842) - [Guqin Tuner](https://appshunter.io/ios/app/guqin-tuner/id1003777898) - [Violin Tuner (All modes)](https://appshunter.io/ios/app/violin-tuner-all-modes/id1009666819) All apps by 海 林: https://appshunter.io/developer/754421888 ## Related topics [easy piano tuner](https://appshunter.io/ios/topics/easy-piano-tuner) · [piano tuner free](https://appshunter.io/ios/topics/piano-tuner-free) · [entropy piano tuner](https://appshunter.io/ios/topics/entropy-piano-tuner) · [piano tuning app](https://appshunter.io/ios/topics/piano-tuning-app) · [piano tuner](https://appshunter.io/ios/topics/piano-tuner) · [free tuning app piano](https://appshunter.io/ios/topics/free-tuning-app-piano) · [tunelab piano tuner](https://appshunter.io/ios/topics/tunelab-piano-tuner) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*