# e+ 體積 vs SJRC

The clearest difference is update cadence: SJRC at every 3 weeks against e+ 體積's every 5 months. SJRC also leads on device support (3 vs 1). e+ 體積's advantage is iOS requirement (8.0 vs 15.0). On price, 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.

e+ 體積 ships an update every 5 months, SJRC every 3 weeks. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | e+ 體積 | SJRC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/sjrc/id1659643643/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 85 MB | 131 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [Enrich Spot Limited](https://appshunter.io/developer/1659643645) |

## What reviewers say

### e+ 體積

[App page](https://appshunter.io/ios/app/e-plus/id1049609383)

**Features:** macOS Compatibility

**In-app purchases:** none


### SJRC

[App page](https://appshunter.io/ios/app/sjrc/id1659643643)

Access a vast library of over 3,000 books designed for educational settings. This platform supports multiple users simultaneously and is regularly updated with new titles, making it easy for teachers and students to find and explore reading materials.

**Highlights:** Over 3,000 books, Supports multiple concurrent users, Constantly updated library, Detailed classification and search, Aids school reading plans

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

**In-app purchases:** none


## Frequently asked questions

### Is e+ 體積 free?

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

### Is SJRC free?

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

### Do e+ 體積 or SJRC have ads?

Neither e+ 體積 nor SJRC shows ads.

### Which is updated more often, e+ 體積 or SJRC?

e+ 體積 ships an update every 5 months, and SJRC every 3 weeks. Most recently, e+ 體積 was updated on October 6, 2026 and SJRC on October 1, 2026.

---

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