# 吉教乐学数字资源 vs AI错题树

The clearest difference is update cadence: AI错题树 at weekly against 吉教乐学数字资源's every 5 weeks. 吉教乐学数字资源's advantage is iOS requirement (12.1 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 吉教乐学数字资源 sells 10 one-off in-app purchases and AI错题树 sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

吉教乐学数字资源 ships an update every 5 weeks, AI错题树 weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 吉教乐学数字资源 | AI错题树 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai/id6771737023/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 354 MB | 48 MB |
| Requires iOS | **12.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Zhihuiliu Education Technology Co., Ltd.](https://appshunter.io/developer/1033400900) | [南京五脉生物科技有限公司](https://appshunter.io/developer/6771737025) |

## What reviewers say

### 吉教乐学数字资源

[App page](https://appshunter.io/ios/app/id1489709120)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12个月时效课程I使用权 | $4.99 | one-time |
| 12个月时效课程J使用权 | $6.99 | one-time |
| 12个月时效课程M使用权 | $8.99 | one-time |
| 12个月时效课程L使用权 | $9.99 | one-time |
| 12个月时效课程H使用权 | $11.99 | one-time |
| 12个月时效课程N使用权 | $12.99 | one-time |
| 12个月时效课程P使用权 | $23.99 | one-time |
| 12个月时效课程E使用权 | $29.99 | one-time |
| 12个月时效课程F使用权 | $46.99 | one-time |
| 12个月时效课程G使用权 | $59.99 | one-time |


### AI错题树

[App page](https://appshunter.io/ios/app/ai/id6771737023)

Effortlessly capture and analyze your mistakes from tests and homework using AI. Organize errors by subject and type, receive correct problem-solving approaches, and track your learning progress to identify weak areas.

**Highlights:** Photo upload for questions and test papers, AI error diagnosis and correction guidance, Organize mistakes by subject and error type, Track learning progress and identify weak areas, Privacy protection with local AI analysis

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 AI calls | $0.99 | one-time |
| 1000 AI Calls | $4.99 | one-time |
| 5000 AI Calls | $24.99 | one-time |


## Frequently asked questions

### Is 吉教乐学数字资源 free?

吉教乐学数字资源 is free to download, with in-app purchases available.

### Is AI错题树 free?

AI错题树 is free to download, with in-app purchases available.

### Do 吉教乐学数字资源 or AI错题树 have ads?

Neither 吉教乐学数字资源 nor AI错题树 shows ads.

### Which is updated more often, 吉教乐学数字资源 or AI错题树?

吉教乐学数字资源 ships an update every 5 weeks, and AI错题树 weekly. Most recently, 吉教乐学数字资源 was updated on October 25, 2026 and AI错题树 on October 24, 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.*