# Donate Books vs E

The clearest difference is iOS requirement: E at 13.0 against Donate Books's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Donate Books ships an update every 4 months, E every 2 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Donate Books | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (7 ratings)](https://appshunter.io/ios/app/donate-books/id1668658774/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 54 MB | 35 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Internet Archive](https://appshunter.io/developer/1197048903) | [宇曦 王](https://appshunter.io/developer/1862645006) |

## What reviewers say

### Donate Books

[App page](https://appshunter.io/ios/app/donate-books/id1668658774)

This app helps you identify which books from your collection are wanted by the Internet Archive for preservation and digitization. Scan book barcodes or printed identifiers using your phone's camera to receive immediate feedback on whether to donate.

**Highlights:** Scan book barcodes, OCR printed identifiers, Camera-based scanning, Preservation feedback, Digitization matching

**Features:** Vision Pro support

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-power/id6773177269)

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

**In-app purchases:** none


## Frequently asked questions

### Is Donate Books free?

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

### Is E free?

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

### Do Donate Books or E have ads?

Neither Donate Books nor E shows ads.

### Which is updated more often, Donate Books or E?

Donate Books ships an update every 4 months, and E every 2 months. Most recently, Donate Books was updated on October 7, 2026 and E on October 8, 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.*