# 童行PBL课堂 vs 悉迹AI

The clearest difference is in-app purchases: 悉迹AI at none against 童行PBL课堂's 2. 童行PBL课堂's advantage is ads (none vs shown) and update cadence (every 11 days vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. 童行PBL课堂 sells 2 one-off in-app purchases. 悉迹AI asks for nothing beyond the download.

童行PBL课堂 ships an update every 11 days, 悉迹AI every 6 weeks. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 童行PBL课堂 | 悉迹AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Size | 60 MB | 12 MB |
| Requires iOS | **9.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京童行星球教育科技有限公司](https://appshunter.io/developer/1442477139) | [Nanjing Xiji Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1860361678) |

## What reviewers say

### 童行PBL课堂

[App page](https://appshunter.io/ios/app/pbl/id1567341975)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 【自然起源】七天PBL项目制学习训练营 | $4.99 | one-time |
| 《时空之旅》PBL项目制学习通识课 | $499.99 | one-time |


### 悉迹AI

[App page](https://appshunter.io/ios/app/ai/id6756570058)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 童行PBL课堂 free?

童行PBL课堂 is free to download, with in-app purchases available.

### Is 悉迹AI free?

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

### Do 童行PBL课堂 or 悉迹AI have ads?

悉迹AI shows ads; 童行PBL课堂 does not.

### Which is updated more often, 童行PBL课堂 or 悉迹AI?

童行PBL课堂 ships an update every 11 days, and 悉迹AI every 6 weeks. Most recently, 童行PBL课堂 was updated on September 8, 2026 and 悉迹AI on September 18, 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.*