# 作业帮 vs 开炼

The clearest difference is ads: 作业帮 at none against 开炼's shown. 作业帮 also leads on update cadence (every 11 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 作业帮 sells 9 in-app purchases, starting at $2.99 per month and 开炼 sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

作业帮 ships an update every 11 days, 开炼 monthly. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 作业帮 | 开炼 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (3.4K ratings)](https://appshunter.io/ios/app/id803781859/reviews)** | — |
| Number of ratings | **3.4K** | — |
| Positive reviews | 72.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Monthly |
| Monetization | Freemium | — |
| Size | 185 MB | 64 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Polar Future Culture Technology Co., Ltd](https://appshunter.io/developer/1681701989) | [极速云科技(深圳)有限公司](https://appshunter.io/developer/1471614480) |

## What reviewers say

### 作业帮

[App page](https://appshunter.io/ios/app/id803781859)

This AI-powered learning platform offers a vast database of questions and exercises for K-12 students. It provides instant AI-driven answers, homework grading, and personalized study plans. Features include video explanations, translation tools, and practice modules for various subjects.

**Highlights:** AI-powered homework grading, Smart Q&A with 1.9 billion questions, Personalized study plans, Video explanations by teachers, AI writing assistance, Photo translation tool

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $2.99 | per month |
| 80学币 | $0.99 | one-time |
| 10学币 | $0.99 | one-time |
| 280学币 | $3.99 | one-time |
| 作业帮1个月VIP | $3.99 | one-time |
| 880学币 | $12.99 | one-time |
| 12个月 | $17.99 | one-time |
| 1880学币 | $29.99 | one-time |
| 5880学币 | $79.99 | one-time |

**What reviewers like**

- 👍 Helpful for homework and assignments
- 🚀 Provides detailed and accurate answers
- 💡 Useful for learning and understanding concepts
- 🤖 Effective AI-powered assistance

**What reviewers complain about**

- 🐛 Inaccurate or incomplete answer explanations
- 🔒 Requires login and personal information
- 💰 Certain features locked behind paywall
- 🤔 Inconsistent performance and reliability

**Reported bugs**

- Crashes or freezes during use
- Incorrect or missing answers for some questions
- Compatibility issues with certain devices or OS versions

**Requested features**

- Expand content coverage to more subjects
- Improve search functionality and accuracy
- Add option for horizontal layout on tablets
- Provide more detailed step-by-step solutions


### 开炼

[App page](https://appshunter.io/ios/app/id1521400176)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP连续包月 | $2.99 | per month |
| VIP连续包季 | $8.99 | per 3 months |
| VIP连续包年 | $32.99 | per year |
| 6 K币 | $0.99 | one-time |
| 18 K币 | $2.99 | one-time |
| 1个月VIP | $3.99 | one-time |
| 68 K币 | $9.99 | one-time |
| 3个月VIP | $9.99 | one-time |
| 158 K币 | $23.99 | one-time |
| 1年VIP | $37.99 | one-time |


## Frequently asked questions

### Is 作业帮 free?

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

### Is 开炼 free?

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

### Do 作业帮 or 开炼 have ads?

开炼 shows ads; 作业帮 does not.

### Which is updated more often, 作业帮 or 开炼?

作业帮 ships an update every 11 days, and 开炼 monthly. Most recently, 作业帮 was updated on November 4, 2026 and 开炼 on November 3, 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.*