# e+ 體積 vs 小書蟲

The clearest difference is device support: 小書蟲 at 3 against e+ 體積's 1. e+ 體積's advantage is iOS requirement (8.0 vs 12.0). 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.

## The numbers

| Metric | e+ 體積 | 小書蟲 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 85 MB | 28 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [LBW (Hong Kong) Limited](https://appshunter.io/developer/1822971481) |

## What reviewers say

### e+ 體積

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 小書蟲

[App page](https://appshunter.io/ios/app/id6747809089)

**Features:** macOS Compatibility

**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 小書蟲 free?

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

### Do e+ 體積 or 小書蟲 have ads?

Neither e+ 體積 nor 小書蟲 shows ads.

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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.*