# 小书童 vs OneOpen

The clearest difference is review sentiment: 小书童 at 100% against OneOpen's 57%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 小书童 sells 2 in-app purchases, starting at $0.99 per month and OneOpen sells 2 in-app purchases, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.

小书童 ships an update every 3 days, OneOpen every 4 days. The most recent releases landed on November 5, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 小书童 | OneOpen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id6770038891/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 57.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | Freemium | Freemium |
| Size | 79 MB | 76 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [建锋 林](https://appshunter.io/developer/1704174610) | [Freedom Dimension (shenzhen) Technology Co., Ltd](https://appshunter.io/developer/6776064465) |

## What reviewers say

### 小书童

[App page](https://appshunter.io/ios/app/id6770038891)

This app consolidates reading notes from various sources like WeChat Read, Kindle, and physical books. It allows users to search, organize, and reflect on their reading history, with AI-powered insights and audio generation for members.

**Highlights:** Consolidate notes from WeChat Read, Kindle, and physical books, Search notes by keyword, author, or personal thoughts, AI-powered insights and question answering, Generate audio readings of notes and insights, Cross-device synchronization via iCloud, Daily 'Today's Encounter' feature for inspiration, Export notes and reading summaries

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shutong Monthly | $0.99 | per month |
| Shutong Annual | $9.90 | per year |


### OneOpen

[App page](https://appshunter.io/ios/app/oneopen-file-viewer/id6792251542)

View a wide range of file types, including documents, web pages, CAD drawings, and 3D models, directly on your iPhone and iPad. Easily open and manage archives, EPUBs, emails, and certificates. Offers basic viewing for free with advanced features available through a subscription.

**Highlights:** Multi-format file viewing, HTML and Markdown preview, CAD and 3D model rotation, Archive browsing and extraction, EPUB reader, Certificate inspection, File information display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Access Annual | $0.99 | per year |
| Advanced Access Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is 小书童 free?

小书童 is free to download, with in-app purchases available.

### Is OneOpen free?

OneOpen is free to download, with in-app purchases available.

### Do 小书童 or OneOpen have ads?

Neither 小书童 nor OneOpen shows ads.

### Which is updated more often, 小书童 or OneOpen?

小书童 ships an update every 3 days, and OneOpen every 4 days. Most recently, 小书童 was updated on November 5, 2026 and OneOpen on November 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.*