# E vs Delvr

The clearest difference is in-app purchases: Delvr at none against E's 1. Delvr also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

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

E ships an update every 3 months, Delvr fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | E | Delvr |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 203 MB | 38 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [David Palmerio](https://appshunter.io/developer/348861875) | [Maevin Labs LLC](https://appshunter.io/developer/1835186342) |

## 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 |


### Delvr

[App page](https://appshunter.io/ios/app/delvr/id6751447997)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is Delvr free?

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

### Do E or Delvr have ads?

Neither E nor Delvr shows ads.

### Which is updated more often, E or Delvr?

E ships an update every 3 months, and Delvr fortnightly. Most recently, E was updated on November 1, 2026 and Delvr on October 30, 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.*