# Cello Tuner - PRO — Precise & Easy Plus metronome > Precise cello tuner and metronome with multiple modes and features. (iPhone/iPad app by Hsing-Fu Hsueh.) - Source: https://appshunter.io/ios/app/cello-tuner-pro/id1270486103 (this page in markdown: same URL + `.md`) - Developer: [Hsing-Fu Hsueh](https://appshunter.io/developer/1103119781) - Category: Music, Utilities - Price: Free with in-app purchases - Rating: 3.80/5 from 17 App Store ratings · 27 written reviews indexed - Age rating: 4+ - Requires: iOS 12.1 · 41 MB - Languages: American English, Arabic, French (France), German (Germany), Hindi, Indonesian, Japanese, Korean, Brazilian Portuguese, Russian and 6 more - Released: 2017-08-14 - Data updated: 2026-07-08 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/cello-tuner-pro/id1270486103/reviews.md ## What is Cello Tuner? Include Standard, 5th Suite, Zoltán Kodály, Whole step down modes. The simplest and most precise tuning APP with auto noise filtering. First step is choose the frequency at top of screen, then choose the tuning at the middle of the screen. When you play instrument, the pitch will be shown on the panel for the individual string by indicating signal high or low. [Tuner] - Calibrate Piano Sound : Click on an open string then calibrate the sound with your instrument. Piano Sound A4=442. - A4 Frequency adjustment: choose 428~452 frequencies for A4 string. - The scale for precision tuning is 10 cents for every sub-bit. The green arrow means pitch is accurate and it will turn white once the pitch difference exceeds more than a sub-bit. [Metronome] - The operation screen is intuitive and easy to use. All functions can be set on the same page. - Intuitive beat mode selection, 18 types, including: Grave 25-45 / Largo 40-60 / Lento 45-60 / Larghetto 60-66 / Adagio 66-76 / Adagietto 72-76 / Andante 76-108 / Andantino 80- 108 / Marcia moderato 83-85 /Andante moderato 92-112 / Moderato 108-120 / Allegretto 112-120 / 116-120/ Allegro 120-156 / Vivace 156-176 / Vivacissimo 172-176 / Presto 168-200 / Prestissimo 200 Bpm and over - Support for "segment beat" function, double, triple and quad beat subdivision - Support pendulum display mode - Timing display Helps control the practice time - Use RTP (Real Time Playback) mode, precise beat, and support dynamic shifting ## Key features - Auto noise filtering - Standard, 5th Suite, Kodály, and Whole step down tuning modes - Calibrate piano sound - A4 frequency adjustment - Intuitive metronome interface - 18 beat types - Segment beat subdivision - Pendulum display mode ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | All Function&No Ads | $0.99 | one-time | ## Recent user reviews (10 of 27) All indexed reviews: https://appshunter.io/ios/app/cello-tuner-pro/id1270486103/reviews.md ### 5/5 — 調音，節拍一次擁有 *2026-04-12, version 3.4* 中文說明，簡單好用 ### 1/5 — Just buzzes *2025-10-12, version 3.4* Doesn’t tune. All it does is make a buzzing sound. ### 4/5 — Good at the start but *2025-04-22, version 3.4* It was good at the start and everything is working well, but then when I press access to microphone on my other phone, it started making weird glitching sounds. ### 1/5 — Horrible *2025-03-20, version 3.4* Horrid grating noise even when uninstall and reinstall 😤 ### 2/5 — Terrible feedback *2025-03-01, version 3.4* As others have commented, app now has terrible feedback, which makes it unusable. Prior to update, it was my go to. ### 1/5 — Terrible *2025-02-18, version 3.4* I used to love it and I’m so sad it buzzes all the time now soo annoying I can’t use it anymore ### 3/5 — Last update broke mic *2025-02-16, version 3.4* Mic buffer is affecting playback buffer making strange noises and making the app unusable. Please fix. Used to be a great app. Thank you. ### 1/5 — Buzz *2025-01-15, version 3.4* Whenever I use the app it makes a loud buzzing sound .not aesthetically pleasing.confusing.do not recommend ### 1/5 — 發癲佬垃圾桶 *2024-11-02, version 3.4* 超級發癲 ### 5/5 — App *2024-09-24* Excelente aplicación . La recomiendo ampliamente. ## Frequently asked questions about Cello Tuner ### How accurate is Cello Tuner PRO? The app features a scale for precision tuning where the green arrow indicates accurate pitch. The signal turns white if the pitch difference exceeds more than a sub-bit, with 10 cents per sub-bit. ### What tuning modes does Cello Tuner PRO offer? Cello Tuner PRO includes Standard, 5th Suite, Zoltán Kodály, and Whole step down tuning modes to accommodate different playing styles and needs. ### Can I adjust the metronome speed in Cello Tuner PRO? Yes, the metronome supports 18 distinct beat types ranging from Grave (25-45 BPM) to Prestissimo (200+ BPM), allowing for precise tempo control. ### Does Cello Tuner PRO support practice timing? Yes, the app includes a timing display feature to help users control and manage their practice sessions effectively. ### What devices is Cello Tuner PRO compatible with? Cello Tuner PRO is available for iPhone, iPad, and iPod devices, offering a versatile tool for iOS users. ### How often is Cello Tuner PRO updated? The app was last updated on April 7, 2022, indicating it receives periodic updates to maintain functionality and potentially add new features. ### What is the user rating for Cello Tuner PRO? Cello Tuner PRO has a rating of 3.8 stars based on 17 user ratings, suggesting a generally positive but mixed user reception. ### Can Cello Tuner PRO calibrate to a specific piano sound? Yes, you can calibrate the piano sound by clicking on an open string and adjusting it to your instrument's tuning, with a default A4=442 Hz. ## Version history (last 5 releases) ### 3.4 — 2022-04-07 - Different screen size devices, user interface and display ratio optimization - Metronome adds recording function and 3 sets of commonly used setting - Bug fix ### 3.3 — 2019-12-31 Bug fixes for iOS13.3 ### 3.2 — 2019-10-20 Bug fixes for iOS 13 ### 3.1.1 — 2018-10-23 bug fix ### 3.0 — 2018-10-18 Plus metronome ## Apps similar to Cello Tuner | App | Rating | Price | Category | | --- | --- | --- | --- | | [Guitar Tuner - Ukulele & Bass](https://appshunter.io/ios/app/guitar-tuner-ukulele-and-bass/id662890455) | 4.4 (7,399) | Free | Music | | [Metronome Tuner \| Practice+](https://appshunter.io/ios/app/metronome-tuner-practice-plus/id858142974) | 4.4 (2,696) | Free | Music | | [Bass Tuner.](https://appshunter.io/ios/app/bass-tuner/id1471438485) | 4.1 (688) | Free | Music | | [Tuner & Metronome -Soundcorset](https://appshunter.io/ios/app/tuner-and-metronome-soundcorset/id918055824) | 4.1 (811) | Free | Music | | [Smart Metronome & Tuner](https://appshunter.io/ios/app/smart-metronome-and-tuner/id889571826) | 4.7 (57,736) | Free | Music | | [Tuner Lite by Piascore](https://appshunter.io/ios/app/tuner-lite-by-piascore/id635828559) | 4.5 (9,461) | Free | Music | ## More apps by Hsing-Fu Hsueh - [Erhu Tuner - Pitch](https://appshunter.io/ios/app/erhu-tuner-pitch/id1103119782) - [Violin Tuner - Pitch](https://appshunter.io/ios/app/violin-tuner-pitch/id1185155196) - [Viola Tuner - Pitch](https://appshunter.io/ios/app/viola-tuner-pitch/id1193544408) - [GuQin Tuner - Pitch](https://appshunter.io/ios/app/guqin-tuner-pitch/id1268477087) - [PiPa Tuner-Tuner for PiPa](https://appshunter.io/ios/app/pipa-tuner-tuner-for-pipa/id1268904834) - [SanXian Tuner-Tuner SanXian](https://appshunter.io/ios/app/sanxian-tuner-tuner-sanxian/id1268910012) All apps by Hsing-Fu Hsueh: https://appshunter.io/developer/1103119781 --- *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 2026-07-08.*