# Harp Guru vs JustinGuitar Note Trainer

The clearest difference is rating: JustinGuitar Note Trainer at 4.4 against Harp Guru's 3.8. JustinGuitar Note Trainer also leads on update cadence (fortnightly vs every 6 weeks) and review sentiment (80% vs 67%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Harp Guru costs $4.99 and JustinGuitar Note Trainer $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JustinGuitar Note Trainer holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 6 and 5 respectively. Written reviews point the same way: 67% of Harp Guru's written reviews are positive against 80% of JustinGuitar Note Trainer's.

Harp Guru ships an update every 6 weeks, JustinGuitar Note Trainer fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Harp Guru | JustinGuitar Note Trainer |
| --- | --- | --- |
| Price | $4.99 | $4.99 |
| Rating | [3.8 (6 ratings)](https://appshunter.io/ios/app/harp-guru/id1552752923/reviews) | **[4.4 (5 ratings)](https://appshunter.io/ios/app/justinguitar-note-trainer/id6761114951/reviews)** |
| Number of ratings | **6** | 5 |
| Positive reviews | 66.7% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#48** |
| Size | 39 MB | 40 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Sinfield](https://appshunter.io/developer/1552752925) | [Justin Guitar](https://appshunter.io/developer/502491353) |

## What reviewers say

### Harp Guru

[App page](https://appshunter.io/ios/app/harp-guru/id1552752923)

This app provides interactive visualizations to help harmonica players understand instrument layouts, explore musical possibilities, and internalize patterns for confident improvisation. It guides users past discordant tones and supports various scales, tunings, and valving setups.

**Highlights:** Interactive harmonica layout visualizations, Explore musical possibilities and limitations, Internalize mental models for improvisation, Guide past discordant tones, Comprehensive scales and tunings list, Support for valving setups

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### JustinGuitar Note Trainer

[App page](https://appshunter.io/ios/app/justinguitar-note-trainer/id6761114951)

**Currently charting:** #48 Top Paid · Education (US App Store)

Master the guitar fretboard quickly with daily exercises designed to build a deep understanding of note locations. This app helps you stop guessing and start knowing every note on your guitar, improving your playing.

**Highlights:** Learn fretboard notes fast, Daily 5-minute exercises, Build mental map of guitar neck, Stop guessing, start knowing notes, Smart repetition for weak spots, Practice anywhere on your phone

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Harp Guru free?

Harp Guru costs $4.99, with no in-app purchases.

### Is JustinGuitar Note Trainer free?

JustinGuitar Note Trainer costs $4.99, with no in-app purchases.

### Which has better reviews, Harp Guru or JustinGuitar Note Trainer?

JustinGuitar Note Trainer is rated higher. Harp Guru averages 3.8 out of 5 from 6 ratings, while JustinGuitar Note Trainer averages 4.4 from 5 ratings.

### Do Harp Guru or JustinGuitar Note Trainer have ads?

Neither Harp Guru nor JustinGuitar Note Trainer shows ads.

### Which is updated more often, Harp Guru or JustinGuitar Note Trainer?

Harp Guru ships an update every 6 weeks, and JustinGuitar Note Trainer fortnightly. Most recently, Harp Guru was updated on October 24, 2026 and JustinGuitar Note Trainer on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*