# DroneTone Concertmaster — High quality reference pitches > High-quality cello-based reference pitches for musical practice and intonation. (iPhone/iPad app by James Roberts.) - Source: https://appshunter.io/ios/app/dronetone-concertmaster/id1660461516 (this page in markdown: same URL + `.md`) - Developer: [James Roberts](https://appshunter.io/developer/1191100590) - Category: Education, Music - Price: $4.99 - Rating: 3.80/5 from 11 App Store ratings · 22 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 86 MB - Languages: American English - Released: 2022-12-19 - Data updated: 2026-09-04 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/dronetone-concertmaster/id1660461516/reviews.md ## What is DroneTone Concertmaster? Drone Tone Tool is an app created by professional musicians and music educators providing high quality reference pitches with the rich overtones of real cellos. We encourage musicians of all abilities to experience the benefits of reference tone practice! Why real cello drones? There are many electronic tone generators, and while they are better than nothing, they lack complexity of overtones and can be painful to listen to. Our cello drones are pleasing to the ear, rich in overtones and contain layered octaves to facilitate practice in all registers. Purpose and benefit of reference/drone tones: A reference (or drone) tone provides a center of harmonic stability. Our ears are able to discern the way that multiple pitches interact while strengthening our internal sense of pitch. By playing with a movable pitch (instrument or voice) relative to a fixed pitch (drone tone) we can start to perceive truly consonant perfect intervals, and 'shades' or 'colors' within Major/Minor intervals. This heightened awareness of relative pitch leads to artistry through intonation. ## Key features - High-quality reference pitches - Rich cello overtones - Harmonic stability - Improved intonation - Perception of intervals - Pleasing sound quality ## Chart rankings - #184 in Top Paid · Education (US App Store) ## Recent user reviews (10 of 22) All indexed reviews: https://appshunter.io/ios/app/dronetone-concertmaster/id1660461516/reviews.md ### 5/5 — Just intonation *2026-03-24* I love this app! Friendly request - is there anyway to add a setting for just intonation when playing multiple pitches. Would absolutely pay for this feature… Thanks for considering! ### 5/5 — Very useful *2025-12-29* A very useful app for practicing your scales. It would be great if the sound continued when the app was minimized. That way, you could simultaneously look at your textbooks in another app and wouldn't have to constantly switch. ### 2/5 — Pitch control not useful. *2025-08-06* Having pitch control of 440, 441 and 442 is fine but should be stated before dropping money on an app. I play historical instruments so 415, 392 and other pitches are needed. ### 5/5 — Excellent for cello player! *2025-07-19* I use this app to work on my scales . It is perfect for ear training and helps a lot to improve my intonation ! ### 3/5 — Decent, simple, not worth $5 *2025-07-14* great simple tool. would be 5 stars if the drone kept going with app not open ### 5/5 — Helps with scale practice *2025-06-18* Works great. I bought it to practice three octave scales on my Violin. Helps me hear my intonation better. Sometimes practicing alone I feel “lost in the wilderness” up in the high registers; there is nothing to compare to. If I’m sharp on one note, and then equally sharp on the successive notes, it still “sounds like a scale” but is wrong. This really helps with that. ### 5/5 — Ideal 🎶 *2025-05-24* Perfect way to practice intonation—I play pedal steel guitar—and rhythm at the same time. Not intended for songwriting or making soundtracks, though you can work on modes, etc. It’s nice that you can balance click & tone volumes. ### 5/5 — Great App! *2025-01-08* Great app, perfect for scales and ear training. Simple and easy to use, with lots of control and a built in metronome! ### 5/5 — Perfect *2025-01-04, version 2.2.1* Been using this app for ages, and I make all my students download it as well. Very welcome addition of different pitch settings. ### 4/5 — Now working with IOS 17.6.1 *2024-10-10* I just paid for this upgrade from the free “lite” version, and it does not work at all with IOS 17.6.1. **Developer response:** Fixed! We had an issue with the previous version of the app where it would not produce sound when the silent switch set to "on". We have just released a new version which resolves that issue. Sorry for the poor experience with the previous version, give the latest version a try! ## Frequently asked questions about DroneTone Concertmaster ### What is the purpose of DroneTone Concertmaster? DroneTone Concertmaster provides high-quality reference pitches with the rich overtones of real cellos. It helps musicians develop a stronger internal sense of pitch and improve their intonation by practicing against a stable harmonic center. ### Why does DroneTone Concertmaster use real cello drones instead of electronic ones? Real cello drones offer a complexity of overtones that electronic generators often lack. The app's cello drones are designed to be pleasing to the ear, rich in overtones, and layered to facilitate practice across all registers. ### How does DroneTone Concertmaster help with artistry? By playing with a movable pitch relative to the fixed drone tone, users can better perceive consonant perfect intervals and subtle 'shades' within Major/Minor intervals. This heightened awareness of relative pitch directly contributes to improved artistry through intonation. ### What is the price of DroneTone Concertmaster? DroneTone Concertmaster is available for a one-time purchase of $4.99. ### What devices is DroneTone Concertmaster compatible with? DroneTone Concertmaster is supported on iPhone, iPad, and iPod devices. ### How often is DroneTone Concertmaster updated? The latest version, 2.2.1, was released on October 7, 2024. Updates are released periodically to improve functionality and add features. ### What is the age rating for DroneTone Concertmaster? DroneTone Concertmaster has an age rating of 4+, making it suitable for a wide range of users. ### What is the user sentiment for DroneTone Concertmaster based on ratings? DroneTone Concertmaster has an average rating of 3.7 stars from 10 ratings, indicating generally positive but mixed user reception. ## Version history (last 3 releases) ### 2.2.1 — 2024-10-07 Resolved an issue where the app would not produce sound while the silent switch was on. Tones will now play even when the silent switch is on! ### 2.2.0 — 2023-01-19 New version! Completely rebuilt from the ground up to include highly requested features such as volume control, chords, and pitch adjustment. This follow on release improves the metronome animation, prevents phone from going to sleep while the app is open, and increases the touch area for some UI elements. ### 2.1.0 — 2022-12-19 No release notes. ## Apps similar to DroneTone Concertmaster | App | Rating | Price | Category | | --- | --- | --- | --- | | [MyMusicTheory - Music Theory](https://appshunter.io/ios/app/mymusictheory-music-theory/id1282574364) | 4.7 (896) | Free | Education | | [MyEarTraining - Ear Trainer](https://appshunter.io/ios/app/myeartraining-ear-trainer/id885622580) | 4.8 (252) | Free | Education | | [MOOZ: Teach Music Online](https://appshunter.io/ios/app/mooz-teach-music-online/id1643103017) | 4.5 (100) | Free | Education | | [Trala: Learn Violin](https://appshunter.io/ios/app/trala-learn-violin/id1143205265) | 4.7 (4,897) | Free | Education | | [TrueFire Guitar Lessons](https://appshunter.io/ios/app/truefire-guitar-lessons/id690143001) | 4.7 (14,669) | Free | Education | | [StaffWars](https://appshunter.io/ios/app/staffwars/id810405576) | 4.3 (132) | $1.99 | Education | ## More apps by James Roberts - [DroneToneTool](https://appshunter.io/ios/app/dronetonetool/id1191100591) - [DroneTone Lite](https://appshunter.io/ios/app/dronetone-lite/id1665412716) All apps by James Roberts: https://appshunter.io/developer/1191100590 --- *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 2026-09-04.*