HarpNinja Diatonic Harmonica vs Harmonica Bending Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HarpNinja Diatonic Harmonica
This app helps you learn the diatonic harmonica faster with real-time pitch recognition and interactive music theory tools. Visualize notes, explore various tunings and scales, and record your playing to improve your skills.
- 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)
Read full descriptionHide full description
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/
Harmonica Bending Trainer
This app aids in practicing bending techniques for 10-hole diatonic harmonicas. It provides a dedicated tool for musicians looking to improve their harmonica playing skills.
- Bending practice support
- 10-hole diatonic harmonicas
- Improve harmonica skills
Read full descriptionHide full description
Harmonica Bending Trainer supports your bending practice for 10-hole diatonic harmonicas.
Screenshots
Verdict
The clearest difference is review sentiment: Harmonica Bending Trainer at 88% against HarpNinja Diatonic Harmonica's 29%. Harmonica Bending Trainer also leads on price (Free vs $19.99) and update cadence (every 6 weeks vs every 9 months). HarpNinja Diatonic Harmonica's advantage is ads (none vs shown) and chart position (#193 vs unranked). On in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Harmonica Bending Trainer is free to download; HarpNinja Diatonic Harmonica costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
HarpNinja Diatonic Harmonica ships an update every 9 months, Harmonica Bending Trainer every 6 weeks. The most recent releases landed on September 21, 2026 and September 14, 2026 respectively.
| Parameter | HarpNinja Diatonic Harmonica | Harmonica Bending Trainer |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | — | 4.5 (34 ratings) — better |
| Positive reviews | 28.6% of reviews | 87.8% of reviews — better |
| Number of ratings | — | 34 — better |
| Update frequency | Every 9 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #193 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 130 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Sonicviz | Blowbend.jp |
Customer experience
HarpNinja Diatonic Harmonica
Harmonica Bending Trainer
In-app purchases
HarpNinja Diatonic Harmonica
No in-app purchases
Harmonica Bending Trainer
No in-app purchases
Questions
Is HarpNinja Diatonic Harmonica free?
Is Harmonica Bending Trainer free?
Do HarpNinja Diatonic Harmonica or Harmonica Bending Trainer have ads?
Which is updated more often, HarpNinja Diatonic Harmonica or Harmonica Bending Trainer?
Other comparisons
