# 云海螺在线1对1 vs 小树分级

The clearest difference is rating: 小树分级 at 5.0 against 云海螺在线1对1's 2.0. 小树分级 also leads on ratings volume (24 vs 1). 云海螺在线1对1's advantage is in-app purchases (none vs 7) and update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 小树分级 sells 7 one-off in-app purchases. 云海螺在线1对1 asks for nothing beyond the download.

小树分级 holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: 小树分级 has 24 ratings behind it against 1, so its average is the more settled of the two.

云海螺在线1对1 ships an update every 4 days, 小树分级 fortnightly. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 云海螺在线1对1 | 小树分级 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/11/id6463595255/reviews) | **[5.0 (24 ratings)](https://appshunter.io/ios/app/id6740281207/reviews)** |
| Number of ratings | 1 | **24** |
| Positive reviews | — | 97.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 160 MB | 73 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [南京云起信息科技有限公司](https://appshunter.io/developer/1411880387) | [上海小树分级信息科技有限公司](https://appshunter.io/developer/1789344341) |

## What reviewers say

### 云海螺在线1对1

[App page](https://appshunter.io/ios/app/11/id6463595255)

This app offers a solid, useful, and top-tier online education product designed for the future. It focuses on providing high-quality learning experiences.

**Highlights:** Future-oriented education, Solid learning content, Useful educational tools, First-class learning experience, Hardcore educational products

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

**In-app purchases:** none


### 小树分级

[App page](https://appshunter.io/ios/app/id6740281207)

This app offers graded English reading materials for children and teenagers, aligned with KPF exam levels. It features articles from foreign publications, adapted into multiple difficulty levels, covering diverse topics and a complete learning journey from pre-reading to post-lesson tests.

**Highlights:** Strict KPF exam level alignment, Articles from foreign publications, Multiple difficulty levels per article, Covers 5 major topic areas, Complete learning journey: pre-read to tests, Weekly new content

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 半年卡 | $29.99 | one-time |
| 半年 | $34.99 | one-time |
| 一年卡 | $49.99 | one-time |
| 1年 | $49.99 | one-time |
| 一年卡+AR测试 | $59.99 | one-time |
| 年卡+AR | $59.99 | one-time |
| 年卡+名师伴读 | $79.99 | one-time |


## Frequently asked questions

### Is 云海螺在线1对1 free?

云海螺在线1对1 is free to download, with no in-app purchases.

### Is 小树分级 free?

小树分级 is free to download, with in-app purchases available.

### Which has better reviews, 云海螺在线1对1 or 小树分级?

小树分级 is rated higher. 云海螺在线1对1 averages 2.0 out of 5 from 1 ratings, while 小树分级 averages 5.0 from 24 ratings.

### Do 云海螺在线1对1 or 小树分级 have ads?

Neither 云海螺在线1对1 nor 小树分级 shows ads.

### Which is updated more often, 云海螺在线1对1 or 小树分级?

云海螺在线1对1 ships an update every 4 days, and 小树分级 fortnightly. Most recently, 云海螺在线1对1 was updated on September 16, 2026 and 小树分级 on September 22, 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.*