# E vs ReadDi E

The clearest difference is update cadence: ReadDi E at every 8 months against E's every 30 months. 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, ReadDi E every 8 months. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | E | ReadDi E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 8 months** |
| Size | 57 MB | 8 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Xentral Methods](https://appshunter.io/developer/464707106) | [BOOKDOSE COMPANY LIMITED](https://appshunter.io/developer/459445000) |

## What reviewers say

### E

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

**Features:** macOS Compatibility

**In-app purchases:** none


### ReadDi E

[App page](https://appshunter.io/ios/app/readdi-e-library/id1603809674)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is ReadDi E free?

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

### Do E or ReadDi E have ads?

Neither E nor ReadDi E shows ads.

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

E ships an update every 30 months, and ReadDi E every 8 months. Most recently, E was updated on September 11, 2026 and ReadDi E on September 17, 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.*