# 单词日积月累 vs 知识树

The clearest difference is rating: 单词日积月累 at 5.0 against 知识树's 4.2. 单词日积月累 also leads on review sentiment (80% vs 39%) and iOS requirement (12.0 vs 17.0). 知识树's advantage is update cadence (every 5 days vs monthly) and ratings volume (5 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 单词日积月累 sells 3 in-app purchases, starting at $0.99 per month and 知识树 sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

单词日积月累 holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: 知识树 has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of 单词日积月累's written reviews are positive against 39% of 知识树's.

单词日积月累 ships an update monthly, 知识树 every 5 days. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 单词日积月累 | 知识树 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6505093598/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/ai/id6505133670/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | **80.0% of reviews** | 38.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Freemium | Freemium |
| Size | 69 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Zhaohuan Network Technology Co., Ltd.](https://appshunter.io/developer/1733427951) | [野 匡](https://appshunter.io/developer/819954894) |

## What reviewers say

### 单词日积月累

[App page](https://appshunter.io/ios/app/id6505093598)

This app helps users efficiently learn English vocabulary using scientific memory techniques. It offers a vast library of word lists for various exams and levels, with personalized study plans and review mechanisms. Learn anytime, anywhere, even offline, to build lasting vocabulary skills.

**Highlights:** Spaced repetition learning method, Daily vocabulary plans, Personalized new word lists, Personalized familiar word lists, Efficient review system, Offline learning capability, Extensive word bank for various exams

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $0.99 | per month |
| 连续包年 | $4.99 | per year |
| 一个月会员 | $2.99 | one-time |


### 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 |


## Frequently asked questions

### Is 单词日积月累 free?

单词日积月累 is free to download, with in-app purchases available.

### Is 知识树 free?

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

### Which has better reviews, 单词日积月累 or 知识树?

单词日积月累 is rated higher. 单词日积月累 averages 5.0 out of 5 from 1 ratings, while 知识树 averages 4.2 from 5 ratings.

### Do 单词日积月累 or 知识树 have ads?

Neither 单词日积月累 nor 知识树 shows ads.

### Which is updated more often, 单词日积月累 or 知识树?

单词日积月累 ships an update monthly, and 知识树 every 5 days. Most recently, 单词日积月累 was updated on October 12, 2026 and 知识树 on October 6, 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.*