# E vs PSO MT

The clearest difference is in-app purchases: PSO MT at none against E's 1. PSO MT also leads on iOS requirement (13.0 vs 17.6). E's advantage is ads (none vs shown) and update cadence (every 3 months vs every 45 months). On price and device support there is nothing between them.

Both are free to download. E sells 1 one-off in-app purchase. PSO MT asks for nothing beyond the download.

E ships an update every 3 months, PSO MT every 45 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | E | PSO MT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 45 months |
| Monetization | Free | — |
| Size | 203 MB | 41 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [David Palmerio](https://appshunter.io/developer/348861875) | [Staatlich anerkannte Physiotherapie-Schule Ortenau gGmbH](https://appshunter.io/developer/1045949845) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-jazz-learn-jazz-guitar/id376532788)

Learn jazz guitar with practical, step-by-step lessons covering chords, progressions, and substitutions. This course is designed for intermediate players looking to understand jazz concepts without overwhelming theory.

**Highlights:** Step-by-step jazz guitar lessons, Covers chords and progressions, Includes theory, tips, tabs, and video, Explains chord embellishments and substitutions, Learn to create own jazz chord progressions, Lessons inspired by jazz standards

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $3.99 | one-time |


### PSO MT

[App page](https://appshunter.io/ios/app/pso-mt/id1392965401)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

E is free to download, with in-app purchases available.

### Is PSO MT free?

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

### Do E or PSO MT have ads?

PSO MT shows ads; E does not.

### Which is updated more often, E or PSO MT?

E ships an update every 3 months, and PSO MT every 45 months. Most recently, E was updated on October 23, 2026 and PSO MT on October 26, 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.*