# Harp Guru vs Locksley

The clearest difference is price: Locksley at Free against Harp Guru's $4.99. Locksley also leads on rating (5.0 vs 3.8) and review sentiment (80% vs 67%). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Locksley is free to download; Harp Guru costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Locksley holds the better App Store score, 5.0 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 Locksley's.

Harp Guru ships an update every 6 weeks, Locksley every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Harp Guru | Locksley |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.8 (6 ratings)](https://appshunter.io/ios/app/harp-guru/id1552752923/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/locksley/id6475052736/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 | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 39 MB | 528 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Sinfield](https://appshunter.io/developer/1552752925) | [Locksley.app LLP](https://appshunter.io/developer/1723225065) |

## 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


### Locksley

[App page](https://appshunter.io/ios/app/locksley/id6475052736)

This app provides quick reference information for locksmiths, covering mortice lock identification, gearbox identification, high security cylinders, and hinge adjustment guides. It serves as a digital sidekick for professionals in the trade.

**Highlights:** Mortice lock identification, Gearbox identification, High security cylinder guides, Hinge adjustment guides, Quick reference information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harp Guru free?

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

### Is Locksley free?

Locksley is free to download, with no in-app purchases.

### Which has better reviews, Harp Guru or Locksley?

Locksley is rated higher. Harp Guru averages 3.8 out of 5 from 6 ratings, while Locksley averages 5.0 from 5 ratings.

### Do Harp Guru or Locksley have ads?

Neither Harp Guru nor Locksley shows ads.

### Which is updated more often, Harp Guru or Locksley?

Harp Guru ships an update every 6 weeks, and Locksley every 3 weeks. Most recently, Harp Guru was updated on October 24, 2026 and Locksley on October 24, 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.*