# 知识树 vs WoziGrow

The clearest difference is review sentiment: WoziGrow at 83% against 知识树's 39%. WoziGrow also leads on rating (4.5 vs 4.2) and update cadence (every 2 days vs every 5 days). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. 知识树 sells 4 in-app purchases, starting at $2.99 per month and WoziGrow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

WoziGrow holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 5 and 11 respectively. Written reviews point the same way: 39% of 知识树's written reviews are positive against 83% of WoziGrow's.

知识树 ships an update every 5 days, WoziGrow every 2 days. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 知识树 | WoziGrow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/ai/id6505133670/reviews) | **[4.5 (11 ratings)](https://appshunter.io/ios/app/wozigrow-visual-flashcards/id6755804611/reviews)** |
| Number of ratings | 5 | **11** |
| Positive reviews | 38.9% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 2 MB | 56 MB |
| Requires iOS | **17.0** | 17.3 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [野 匡](https://appshunter.io/developer/819954894) | [Wozi Pte. Ltd.](https://appshunter.io/developer/1092817989) |

## What reviewers say

### 知识树

[App page](https://appshunter.io/ios/app/ai/id6505133670)

This intelligent learning system uses AI to understand knowledge, break down concepts, and dynamically schedule practice and review based on your memory state. It focuses on true retention through spaced repetition and scientific memory curves, not just completing exercises.

**Highlights:** AI-driven knowledge understanding, Dynamic practice and review scheduling, Breakdown of knowledge into testable points, Spaced repetition for long-term memory, Automatic assessment of mastery, Progress tracking over speed

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | per month |
| 季度会员 | $4.99 | per 3 months |
| 年度会员 | $19.99 | per year |
| 终身会员 | $24.99 | one-time |


### WoziGrow

[App page](https://appshunter.io/ios/app/wozigrow-visual-flashcards/id6755804611)

Learn new words through a visual game by collecting unique stickers for each term. This app uses spaced repetition and visual association to help beginners master vocabulary quickly. Track your progress and expand your collection across multiple languages.

**Highlights:** Visual flashcards with illustrations, Spaced repetition system (SRS), Sticker collection album, Beginner-focused vocabulary, Home screen widgets, 17+ languages supported

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WoziGrow Full Version | $6.99 | one-time |


## Frequently asked questions

### Is 知识树 free?

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

### Is WoziGrow free?

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

### Which has better reviews, 知识树 or WoziGrow?

WoziGrow is rated higher. 知识树 averages 4.2 out of 5 from 5 ratings, while WoziGrow averages 4.5 from 11 ratings.

### Do 知识树 or WoziGrow have ads?

Neither 知识树 nor WoziGrow shows ads.

### Which is updated more often, 知识树 or WoziGrow?

知识树 ships an update every 5 days, and WoziGrow every 2 days. Most recently, 知识树 was updated on September 23, 2026 and WoziGrow on September 10, 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.*