# E vs eEPUB

The clearest difference is update cadence: eEPUB at every 2 months against E's every 30 months. E's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

E ships an update every 30 months, eEPUB every 2 months. The most recent releases landed on September 11, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | E | eEPUB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 2 months** |
| Size | 57 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xentral Methods](https://appshunter.io/developer/464707106) | [Keisuke Kudo](https://appshunter.io/developer/1782903478) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-library-academy/id1477036527)

**Features:** macOS Compatibility

**In-app purchases:** none


### eEPUB

[App page](https://appshunter.io/ios/app/eepub/id6772682298)

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

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is eEPUB free?

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

### Do E or eEPUB have ads?

Neither E nor eEPUB shows ads.

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

E ships an update every 30 months, and eEPUB every 2 months. Most recently, E was updated on September 11, 2026 and eEPUB on September 12, 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.*