# NaniBook vs e 筆

The clearest difference is device support: NaniBook at 3 against e 筆's 1. NaniBook also leads on iOS requirement (13.0 vs 16.0). 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.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | NaniBook | e 筆 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e/id1628710051/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 193 MB | 162 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nani](https://appshunter.io/developer/781310152) | [STUDIO A](https://appshunter.io/developer/1229645980) |

## What reviewers say

### NaniBook

[App page](https://appshunter.io/ios/app/nanibook/id1533372296)

Transform textbooks into engaging digital lessons with this app. It facilitates synchronized learning for entire classes across various devices, enriching educational content with multimedia elements like videos and animations.

**Highlights:** Synchronized whole-class learning, Supports tablets, computers, and touch screens, Integrates multimedia (videos, animations), Aligns with elementary/middle school curricula, Interactive learning materials

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

**In-app purchases:** none

**What reviewers like**

- 👍 Can be used for home learning
- 👍 Useful for teachers
- 👍 Some users find it helpful when textbooks are not available
- 👍 Some users find it helpful for finding answers and doing homework

**What reviewers complain about**

- 🐛 Constant crashing (閃退)
- 🐛 Slow download speeds
- 🐛 Students cannot log in or use the app
- 🐛 App is unusable after OS updates (e.g., iPadOS 18)
- 🐛 Cannot download ebooks

**Reported bugs**

- App crashes frequently
- Ebooks cannot be downloaded
- Cannot log in
- App is unusable after OS updates
- Cannot switch between exercises or textbooks

**Requested features**

- Allow students to log in and use the app
- Improve download speeds
- Fix crashing issues
- Ensure compatibility with latest OS versions
- Allow deletion or cancellation of downloads


### e 筆

[App page](https://appshunter.io/ios/app/e/id1628710051)

Practice calligraphy and drawing with adjustable stroke thickness and background grids. Features dedicated modes for stroke control, character practice, and poetry writing, allowing users to save their creations. Ideal for all ages to experience the joy of writing without traditional tools.

**Highlights:** Adjustable stroke thickness and color, Customizable background grids, Dedicated character practice modes, Poetry writing feature, Save and store created works, Suitable for all ages

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NaniBook free?

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

### Is e 筆 free?

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

### Do NaniBook or e 筆 have ads?

Neither NaniBook nor e 筆 shows ads.

### Which is updated more often, NaniBook or e 筆?

NaniBook ships an update every 3 weeks, and e 筆 every 3 weeks. Most recently, NaniBook was updated on September 21, 2026 and e 筆 on September 7, 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.*