# Cello Tuner – XTuner PRO — Accurate Cello Tuner App > Free, offline cello tuner with auto, manual, and chromatic modes. (iPhone/iPad app by NETIGEN KLUZOWICZ SPOLKA JAWNA.) - Source: https://appshunter.io/ios/app/cello-tuner-xtuner-pro/id6744968042 (this page in markdown: same URL + `.md`) - Developer: [NETIGEN KLUZOWICZ SPOLKA JAWNA](https://appshunter.io/developer/892331873) - Category: Music, Utilities - Price: Free with in-app purchases - Rating: 4.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 12.0 · 58 MB - Languages: English - Released: 2025-06-09 - Data updated: 2026-07-06 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/cello-tuner-xtuner-pro/id6744968042/reviews.md ## What is Cello Tuner? Cello Tuner – XTuner PRO is an easy-to-use free mobile application with which you will be able to tune your violoncello quickly. The sounds for our application were recorded by professional musicians. Sounds that cannot be generated by a musician have been created synthetically. App works offline. What is the most important: it is a free tuner. The algorithm in the cello tuner offline app has been prepared for the most effective recognition of instrument sounds. Cello Tuner – XTuner PRO app for instruments has three modes: auto tune, manual and pro - chromatic tuner mode. App works offline. - Auto Tune – automatic tuning – examined the frequency of the signal is interpreted to the next clear sound of the specific frequencies of pure sound. - Manual – sound tuning - select a specific sound that will be tuned. Features in the tuning app: - recordings of real sounds of violoncello - the ability to set the frequency of sound "a" (concert pitch) in Hz (herz), - the ability to determine the deviation from the base frequency in cents, - instrument head view, - ability to set frequency filter - custom tuning - presets for your music instrument - chromatic tuner mode – you can practise diapason using it - auto tune and manual mode - professional frequency settings – choose the concert pitch in Hz and transposition - cello tuner offline - it is a free pro tuner; you don’t have to pay. Use the auto cello tuner for quick adjustments or the manual cello tuner for more control. The chromatic cello tuner mode is ideal for tuning by frequency and practicing different pitches. Thanks to accurate frequency detection, this professional cello tuner is also a great cello pitch tuner and concert pitch tuner. You can easily set the A440 standard or customize the frequency settings. Cello Tuner – XTuner PRO is not just a digital cello tuner, it’s an advanced cello tuner and a real music tuner for cello players. It includes features like real cello sounds, tune cello by ear option, and a powerful cello tuning assistant. Whether you want to tune my cello, try pro cello tuning, or use it as a classical instrument tuner, this is the tool for you. This cello tuning app is optimized for orchestral and solo performances. It’s also a great cello tuner app for beginners and professionals alike. Tune cello easily anytime, anywhere – it's a free cello tuner, offline and ready to use. Designed as the best cello tuner and easy cello tuner, it's your go-to tuner for strings instruments and violoncello. Try the cello tuner free, enjoy accurate cello tuner features, and improve your sound with this top-rated cello tuner offline free. The cello tuner by sound helps you practice, while the cello tuner with frequency settings ensures precision. Perfect for every musician tuner for cello and perfect for your cello tuning app free needs. If you would like to have version of the free tuner with no ads, you can buy premium forever or subscription. If you will have any problems with Cello Tuner – XTuner PRO app, please feel free to contact us: mobile@netigen.eu. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://netigen.eu/privacy/ More information: https://xtunerpro.com/cello ## Key features - Offline tuning - Auto tune mode - Manual tune mode - Chromatic tuner mode - Real cello sounds - Customizable frequency settings - Instrument head view ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 1 week subscription + trial | $2.99 | per 7 days | ## Frequently asked questions about Cello Tuner ### Does Cello Tuner XTuner PRO have ads? Yes, Cello Tuner XTuner PRO contains advertisements. Users can opt for a premium version without ads through a one-time purchase or subscription. ### What tuning modes does Cello Tuner XTuner PRO offer? Cello Tuner XTuner PRO offers three tuning modes: Auto Tune for automatic frequency recognition, Manual for selecting specific sounds, and Pro - Chromatic Tuner mode for practicing diapason using frequency. ### Can I tune my cello without an internet connection using Cello Tuner XTuner PRO? Yes, Cello Tuner XTuner PRO is designed to work offline, allowing you to tune your cello anytime, anywhere without needing an internet connection. ### What is the concert pitch setting in Cello Tuner XTuner PRO? The concert pitch setting, often referred to as 'a' frequency, can be set in Hz. You can customize this frequency, with the standard A440 being a common option. ### How accurate is Cello Tuner XTuner PRO? The app features an algorithm optimized for effective recognition of instrument sounds and accurate frequency detection, making it a professional-grade cello tuner. ### What devices is Cello Tuner XTuner PRO available on? Cello Tuner XTuner PRO is available for iPhone, iPad, and iPod devices. ### What is the subscription cost for Cello Tuner XTuner PRO? A 1-week subscription is available for $2.99, which includes a 3-day free trial. ### Is Cello Tuner XTuner PRO suitable for beginners? Yes, Cello Tuner XTuner PRO is designed to be easy to use and is suitable for beginners, as well as professionals, offering features like auto-tune for quick adjustments. ## Version history (last 3 releases) ### 1.0.23 — 2025-08-26 Overall application improvement. ### 1.0.19 — 2025-06-25 Overall application improvement. ### 1.0 — 2025-06-10 No release notes. ## More apps by NETIGEN KLUZOWICZ SPOLKA JAWNA - [The Best Sound Meter](https://appshunter.io/ios/app/the-best-sound-meter/id901506954) - [Best Hungry Fish](https://appshunter.io/ios/app/best-hungry-fish/id902315949) - [Best Mr Hamster](https://appshunter.io/ios/app/best-mr-hamster/id903349931) - [The Best Drums](https://appshunter.io/ios/app/the-best-drums/id903392118) - [The Best Dinosaurs Sounds](https://appshunter.io/ios/app/the-best-dinosaurs-sounds/id910517093) - [The Best Ruler](https://appshunter.io/ios/app/the-best-ruler/id914330181) All apps by NETIGEN KLUZOWICZ SPOLKA JAWNA: https://appshunter.io/developer/892331873 ## Related topics [free cello tuner](https://appshunter.io/ios/topics/free-cello-tuner) · [accurate cello tuner](https://appshunter.io/ios/topics/accurate-cello-tuner) · [best cello tuner applications](https://appshunter.io/ios/topics/best-cello-tuner-applications) --- *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 2026-07-06.*