# HarpNinja Diatonic Harmonica > Diatonic harmonica learning app with pitch recognition and music theory. (iPhone/iPad app by Sonicviz.) - Source: https://appshunter.io/ios/app/harpninja-diatonic-harmonica/id970927179 (this page in markdown: same URL + `.md`) - Developer: [Sonicviz](https://appshunter.io/developer/421096824) - Category: Music, Education - Price: $19.99 - Age rating: 4+ - Requires: iOS 13.0 · 130 MB - Languages: American English - Released: 2015-03-17 - Data updated: 2026-08-24 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/harpninja-diatonic-harmonica/id970927179/reviews.md ## What is HarpNinja Diatonic Harmonica? HarpNinja - Learn harmonica faster! Pitch recognition + easy music theory HarpNinja Diatonic Harmonica is a diatonic harmonica version of its big brother app HarpNinja. It includes just the essential tuning and music theory features for easy access on your smartphone or tablet wherever you may be. The user interface is designed to scale from small smartphones (5"++ recommended minimum) to tablets and to desktops. *** Reviews of HarpNinja: 1. Bluesharmonica.com http://www.bluesharmonica.com/harpninja 2. Bluestime.it http://www.bluestime.it/harpninja.html Please Note: HarpNinja Diatonic Harmonica RECOMMENDED MINIMUM SCREEN SIZE would be at least a 5" screen smartphone. Anything below this size would really be too small to be useful. If you have technical issues please contact me direct or via the support forum. HarpNinja supports your harmonica learning independent of whatever method you are using. It has two modes. Real time pitch recognition shows you what you play. Harmonica mode is where you can visualize all the notes on a diatonic (10-hole) harmonica. Select from 8 commonly available Diatonic tunings (Major, Natural Minor, Harmonic Minor, Melody maker, Country, Diminished, Powerbender, or Suzuki Ultrabend Sub30) or 7 Chromatic Tunings (Standard/Solo, Bebop, C6, C6 Bebop, Diminished, Augmented, or Whole Tone), all 12 Keys, 18 Scales, and 5 Chord types (Maj, Min, 7th, Aug, Dim). You can also switch the display between notes or music intervals. Play your harmonica and the Real time pitch recognition highlights the notes on screen. An audio recorder also allows you to record up to 30 second segments to hear your own playing. Interactive Circle of Fifths makes music theory easy. Circle of Fifths mode is an interactive Circle of Fifth’s specially adapted for harmonica. The Circle of Fifth’s is a well known music theory tool for working out chord and scale relationships. Settings mode is where you can adjust all the harmonica and application settings, in addition to checking the integrated news feed and any errors. Please see the website help and tutorials for more guidance: http://www.harpninja.com/wp/faqhelp/ http://www.harpninja.com/wp/video-help/ ## Key features - Real-time pitch recognition - Diatonic harmonica note visualization - Interactive Circle of Fifths - Support for 8 Diatonic tunings - Support for 7 Chromatic tunings - 18 Scales and 5 Chord types - Audio recorder (30 seconds) ## Chart rankings - #181 in Top Paid · Music (US App Store) ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/harpninja-diatonic-harmonica/id970927179/reviews.md ### 1/5 — Stürzt immer ab *2024-12-04* Stürzt immer ab nutzlos ### 3/5 — Setting need to save *2021-01-13, version 1.3* If you switch away fry the app but it’s still open in the background when you switch back it reverts to C harmonica. Should stay on what you had set A for example but it doesn’t. Makes it frustrating because you have to select harp key again. ### 1/5 — HarpNinja Diatonic *2020-03-07* This is a useless app a total waste of money! Basically it does nothing. ### 3/5 — Potential but flawed *2019-06-01, version 1.3* I got this based on David Barrett’s recommendation. It has functionality but needs work. Here’s two major flaws: The controls are a problem. Changing the key is poorly designed with the controls in such small shapes and located too closely. There’s no support for low tuned harmonicas. ### 2/5 — Confusing to use *2019-01-27, version 1.3* I’m a idiot when it comes to music and I had no idea how to use this app. I thought it would be simple and tell me what I was playing. ### 5/5 — Expensive *2015-11-05, version 1.2* Great tool for learning harmonica but wish it was cheaper... ### 5/5 — HarpNinja - Really useful tool *2015-05-28* I am just learning to play the harp. This program really helps me to sharpen up my single notes. Have tried bending without much success but the program is very accurate in telling you how far off the bend you are (;-)) ## Frequently asked questions about HarpNinja Diatonic Harmonica ### What is the minimum screen size recommended for HarpNinja Diatonic Harmonica? The recommended minimum screen size for HarpNinja Diatonic Harmonica is at least a 5-inch screen smartphone. Anything smaller may be too difficult to use effectively. ### What tunings and scales does HarpNinja Diatonic Harmonica support? HarpNinja Diatonic Harmonica supports 8 common Diatonic tunings (Major, Natural Minor, Harmonic Minor, Melody maker, Country, Diminished, Powerbender, or Suzuki Ultrabend Sub30) and 7 Chromatic Tunings, across all 12 Keys, 18 Scales, and 5 Chord types. ### Can I record my playing with HarpNinja Diatonic Harmonica? Yes, HarpNinja Diatonic Harmonica includes an audio recorder that allows you to record up to 30-second segments of your playing to review and analyze. ### How does the pitch recognition feature work in HarpNinja Diatonic Harmonica? When you play your harmonica, the real-time pitch recognition feature in HarpNinja Diatonic Harmonica will highlight the corresponding notes on the screen, helping you understand what you are playing. ### Is HarpNinja Diatonic Harmonica available on Android devices? Based on the supported devices listed, HarpNinja Diatonic Harmonica is available for iPhone and iPad. Further platform compatibility details would need to be confirmed with the developer. ### How often is HarpNinja Diatonic Harmonica updated? HarpNinja Diatonic Harmonica was last updated on September 10, 2023, indicating it receives periodic updates for improvements and bug fixes. ### Does HarpNinja Diatonic Harmonica have ads? No, HarpNinja Diatonic Harmonica does not contain advertisements. It is a paid application without any ad interruptions. ### What music theory concepts can I learn with HarpNinja Diatonic Harmonica? HarpNinja Diatonic Harmonica features an interactive Circle of Fifths, a key music theory tool for understanding chord and scale relationships, making music theory more accessible for harmonica players. ## Version history (last 4 releases) ### 1.6 — 2023-09-10 Rebuilt with latest API ### 1.3 — 2016-01-20 This app has been updated by Apple to display the Apple Watch app icon. Bug Fixes Platform refresh build ### 1.2 — 2015-04-30 Performance fixes ### 1.0 — 2015-03-17 No release notes. ## Apps similar to HarpNinja Diatonic Harmonica | App | Rating | Price | Category | | --- | --- | --- | --- | | [Learn Harmonica In 7 Days](https://appshunter.io/ios/app/learn-harmonica-in-7-days/id6747044431) | 5.0 (10) | Free | Music | | [Amazing Slow Downer](https://appshunter.io/ios/app/amazing-slow-downer/id308998718) | 3.9 (447) | $14.99 | Music | | [iStroboSoft](https://appshunter.io/ios/app/istrobosoft/id308296029) | 4.3 (298) | $9.99 | Music | | [Harmonica Tab Pro](https://appshunter.io/ios/app/harmonica-tab-pro/id1259726613) | 3.5 (25) | Free | Music | | [Harmonica Tabs](https://appshunter.io/ios/app/harmonica-tabs/id1530013621) | — | Free | Music | | [Harmonica Bending Trainer](https://appshunter.io/ios/app/harmonica-bending-trainer/id1479803169) | 4.5 (34) | Free | Music | --- *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 2026-08-24.*