# 作业改改 vs ChatBot

The clearest difference is device support: ChatBot at 2 against 作业改改's —. 作业改改's advantage is iOS requirement (9.0 vs 11.0). On price and in-app purchases there is nothing between them.

Both are free to download. 作业改改 sells 3 in-app purchases, starting at $3.99 per 7 days and ChatBot sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 作业改改 | ChatBot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6459903159/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 4 days |
| Monetization | Freemium | — |
| Size | 30 MB | 89 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [明笑 常](https://appshunter.io/developer/1683247572) | [ORIENT VISION SHIPPING LIMITED](https://appshunter.io/developer/1645273025) |

## What reviewers say

### 作业改改

[App page](https://appshunter.io/ios/app/id6459903159)

This app quickly checks math calculations and grades English essays via photo or text input. It also scans documents into PDFs for easy sharing across devices, streamlining the grading and administrative process.

**Highlights:** Photo check for math calculations, AI grading for English essays, Document scanning to PDF, Cross-device sharing, Time-saving efficiency

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 月会员 | $6.99 | per month |
| 年会员 | $14.99 | per year |


### ChatBot

[App page](https://appshunter.io/ios/app/chatbot-ai-assistant/id6478198530)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Member | $4.99 | per month |
| Weekly Member | $6.99 | per 7 days |
| Quarterly Member | $9.99 | per 3 months |
| Yearly Member | $39.99 | per year |


## Frequently asked questions

### Is 作业改改 free?

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

### Is ChatBot free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*