# 作业帮 vs 数独天天练

The clearest difference is update cadence: 作业帮 at every 11 days against 数独天天练's every 28 months. On price, ads, in-app purchases and device support 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 数独天天练 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

作业帮 ships an update every 11 days, 数独天天练 every 28 months. The most recent releases landed on November 9, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 作业帮 | 数独天天练 |
| --- | --- | --- |
| 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 | No |
| Update frequency | **Every 11 days** | Every 28 months |
| Monetization | Freemium | — |
| Size | 185 MB | 134 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Polar Future Culture Technology Co., Ltd](https://appshunter.io/developer/1681701989) | [Kunming Jianet Technology Co., Ltd.](https://appshunter.io/developer/1465682556) |

## 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


### 数独天天练

[App page](https://appshunter.io/ios/app/id1625525955)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 60个金币 | $0.99 | one-time |
| 6元解锁全部数独教程 | $0.99 | one-time |
| 180个金币 | $1.99 | one-time |
| 360个金币 | $2.99 | one-time |


## Frequently asked questions

### Is 作业帮 free?

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

### Is 数独天天练 free?

数独天天练 is free to download, with in-app purchases available.

### Do 作业帮 or 数独天天练 have ads?

Neither 作业帮 nor 数独天天练 shows ads.

### Which is updated more often, 作业帮 or 数独天天练?

作业帮 ships an update every 11 days, and 数独天天练 every 28 months. Most recently, 作业帮 was updated on November 9, 2026 and 数独天天练 on October 27, 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.*