# e vs 书中课堂

The clearest difference is in-app purchases: e at none against 书中课堂's 8. e also leads on ratings volume (7 vs 1). 书中课堂's advantage is update cadence (monthly vs every 70 months) and device support. On price and rating there is nothing between them.

Both are free to download. 书中课堂 sells 8 one-off in-app purchases. e asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for e against 5.0 for 书中课堂. That said, the two scores are not equally well evidenced: e has 7 ratings behind it against 1, so its average is the more settled of the two.

e ships an update every 70 months, 书中课堂 monthly. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | e | 书中课堂 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (7 ratings)](https://appshunter.io/ios/app/e-codices/id493860862/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id1005029377/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 70 months | **Monthly** |
| Monetization | Free | — |
| Size | 4 MB | 47 MB |
| Requires iOS | 18.0 | **9.3** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [text & bytes LLC](https://appshunter.io/developer/493860865) | [Hangzhou Dayread Communications Co., Ltd.](https://appshunter.io/developer/1005029376) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-codices/id493860862)

Explore over 1,000 digitized medieval manuscripts with high-resolution images. Bookmark, download, and view historical documents offline, complete with scholarly descriptions.

**Highlights:** Browse over 1,000 digitized manuscripts, View over 450,000 high-resolution pages, Bookmark favorite manuscripts, Download manuscripts for offline viewing, Access scholarly manuscript descriptions

**In-app purchases:** none


### 书中课堂

[App page](https://appshunter.io/ios/app/id1005029377)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1DayreadCoin | $0.99 | one-time |
| 6DayreadCoin | $0.99 | one-time |
| 45DayreadCoin | $6.99 | one-time |
| 68DayreadCoin | $9.99 | one-time |
| 118DayreadCoin | $17.99 | one-time |
| 198DayreadCoin | $29.99 | one-time |
| 348DayreadCoin | $54.99 | one-time |
| 648DayreadCoin | $99.99 | one-time |


## Frequently asked questions

### Is e free?

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

### Is 书中课堂 free?

书中课堂 is free to download, with in-app purchases available.

### Which has better reviews, e or 书中课堂?

e and 书中课堂 are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.

### Which is updated more often, e or 书中课堂?

e ships an update every 70 months, and 书中课堂 monthly. Most recently, e was updated on September 21, 2026 and 书中课堂 on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*