# 百度文库 vs Numbertopia

The clearest difference is in-app purchases: Numbertopia at none against 百度文库's 19. Numbertopia also leads on ads (none vs shown) and rating (5.0 vs 4.6). 百度文库's advantage is update cadence (every 2 weeks vs every 5 months) and ratings volume (1.4K vs 1). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 百度文库 sells 17 in-app purchases, starting at $1.99 per month. Numbertopia asks for nothing beyond the download.

Numbertopia holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: 百度文库 has 1.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 72% of 百度文库's written reviews are positive against 100% of Numbertopia's.

百度文库 ships an update every 2 weeks, Numbertopia every 5 months. The most recent releases landed on September 26, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | 百度文库 | Numbertopia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.4K ratings)](https://appshunter.io/ios/app/ai/id426340811/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/numbertopia/id1536525498/reviews)** |
| Number of ratings | **1.4K** | 1 |
| Positive reviews | 71.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 200 MB | 11 MB |
| Requires iOS | **13.0** | 13.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Beijing Baidu Netcom Science & Technology Co.,Ltd](https://appshunter.io/developer/372585298) | [Beijing Tabledox Technology Co., Limited](https://appshunter.io/developer/1448361669) |

## What reviewers say

### 百度文库

[App page](https://appshunter.io/ios/app/ai/id426340811)

This app offers a comprehensive AI-powered platform for content creation and document management. It can generate various content formats like PPTs, reports, and videos, and also provides access to a vast library of professional documents for learning and work.

**Highlights:** AI content generation (PPT, reports, video, etc.), Smart document summarization and Q&A, Extensive professional document library, Document management and organization, AI-powered writing assistance, Multi-modal AI assistant

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月VIP | $1.99 | per month |
| 连续包月 | $2.49 | per month |
| 连续包月VIP | $2.49 | per month |
| 连续包月 | $2.99 | per month |
| 连续包月VIP | $2.99 | per month |
| 自动续费（回馈） | $2.99 | per month |
| 免费试用 | $3.99 | per month |
| 连续包月（特惠） | $3.99 | per month |
| 连续包月 | $3.99 | per month |
| 连续包月 | $3.99 | per month |
| 连续包月 | $3.99 | per month |
| 6文库币 | $0.99 | one-time |
| 18文库币 | $2.99 | one-time |
| 1个月VIP | $3.99 | one-time |
| 30文库币 | $3.99 | one-time |
| 3个月VIP | $6.99 | one-time |
| 12个月VIP | $14.99 | one-time |

**What reviewers like**

- 👍 Good app
- 🚀 Fast and accurate search
- 💡 Comprehensive library of resources
- 👍 Helpful for learning and research

**What reviewers complain about**

- 💰 Paywall for full access
- 🐛 Misleading advertising about free content
- 🤬 Aggressive monetization tactics
- 🙄 Poor user experience

**Reported bugs**

- Crashes and freezes
- Sync issues between devices
- Broken download functionality

**Requested features**

- Offline access to documents
- More free content and resources
- Improved search and filtering options
- Better organization and categorization


### Numbertopia

[App page](https://appshunter.io/ios/app/numbertopia/id1536525498)

This educational game challenges players to use arithmetic operations on a set of cards to reach a target number. It features both pre-set levels and randomly generated puzzles, encouraging strategic thinking and advanced math skills.

**Highlights:** Reach target numbers with arithmetic operations, Level-based puzzles with unlockable stages, Randomly generated puzzles, Multiple solutions for puzzles, Star rewards for progress and solutions

**In-app purchases:** none


## Frequently asked questions

### Is 百度文库 free?

百度文库 is free to download, with in-app purchases available.

### Is Numbertopia free?

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

### Which has better reviews, 百度文库 or Numbertopia?

Numbertopia is rated higher. 百度文库 averages 4.6 out of 5 from 1.4K ratings, while Numbertopia averages 5.0 from 1 ratings.

### Do 百度文库 or Numbertopia have ads?

百度文库 shows ads; Numbertopia does not.

### Which is updated more often, 百度文库 or Numbertopia?

百度文库 ships an update every 2 weeks, and Numbertopia every 5 months. Most recently, 百度文库 was updated on September 26, 2026 and Numbertopia on June 5, 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.*