Harp Guru
Joseph Sinfield · Education
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Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
New features - JDR Trochilus tunings (v18.4.0, 23 Sep 2026): Richter, pop, solo and 6th solo slide tunings for the JDR Trochilus (also sold as the Bushman Game Changer). They have their own section in the tuning menu. Bug fixes - Switching apps no longer crashes HarpGuru (v15.1.0, Aug 2024). Under the hood (nothing new for users) - Expo SDK upgrades: 41 → 47 (v13.0.0), → 51 (v15.0.0), → 54 (v16.0.0), → 57 (v17.0.0). Along the way React went to 19.2 and React Native to 0.86. - Animation and gesture libraries: Reanimated went from 1 to 4 and Gesture Handler to 2.32, and the gestures were moved onto the newer Gesture API. - State management: reactn was replaced with Zustand (v16.0.0). - Build and release: builds moved to EAS, with Android first (v14.0.0). Since v18.0.0, merging to master tags and builds automatically, and it submits to the open testing tracks. Since v18.1.0–v18.3.0, the build is also submitted for iOS Beta App Review automatically. - Export compliance: declared ahead of time, so TestFlight builds don't sit in Missing Compliance waiting for a manual answer.
Ratings breakdown · US
The star breakdown behind this app's rating in this storefront.
In-app purchases · US
No in-app purchases.
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Similar apps
Competitors and close alternatives, as estimated by AppTracker.
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About
Building a working knowledge of a harmonica's layout is a real challenge. New players struggle to make sense of basic patterns, and even experienced players can find themselves lost in higher registers or different keys. The Harp Guru gives you interactive visualisations to: - Help you understand how your harmonica is laid out - Show you the possibilities and limitations of each position - Show you the possibilities and limitations of each harmonica - Move your licks between registers with confidence - Guide you past the discordant tones during improvisations - Act as reference in all situations before you have a perfect mental model Then Harp Guru helps you internalise all of this in to a mental model so you can improvise and change key confidently with your eyes closed. There will always be another harmonica layout or position to learn though, and Harp Guru will be able to help, whatever combination you need to work on. Featuring a comprehensive list of scales & tunings, all with the option to add valving setups. Find complete list of features and instructions on how to get the most out of Harp Guru at https://www.youtube.com/channel/UC_uFG-i4MZeFE3JYoFv0R0A
What's new · 18.4.0, Build (38)
New features - JDR Trochilus tunings (v18.4.0, 23 Sep 2026): Richter, pop, solo and 6th solo slide tunings for the JDR Trochilus (also sold as the Bushman Game Changer). They have their own section in the tuning menu. Bug fixes - Switching apps no longer crashes HarpGuru (v15.1.0, Aug 2024). Under the hood (nothing new for users) - Expo SDK upgrades: 41 → 47 (v13.0.0), → 51 (v15.0.0), → 54 (v16.0.0), → 57 (v17.0.0). Along the way React went to 19.2 and React Native to 0.86. - Animation and gesture libraries: Reanimated went from 1 to 4 and Gesture Handler to 2.32, and the gestures were moved onto the newer Gesture API. - State management: reactn was replaced with Zustand (v16.0.0). - Build and release: builds moved to EAS, with Android first (v14.0.0). Since v18.0.0, merging to master tags and builds automatically, and it submits to the open testing tracks. Since v18.1.0–v18.3.0, the build is also submitted for iOS Beta App Review automatically. - Export compliance: declared ahead of time, so TestFlight builds don't sit in Missing Compliance waiting for a manual answer.
Details