# 柚子字帖 vs Question AI

The clearest difference is price: Question AI at Free against 柚子字帖's $1.99. 柚子字帖's advantage is in-app purchases (none vs 3) and iOS requirement (13.0 vs 16.6). On ads and device support there is nothing between them.

Question AI is free to download; 柚子字帖 costs $1.99 up front. Question AI sells 3 in-app purchases, starting at $3.99 per 7 days. 柚子字帖 asks for nothing beyond the download.

## The numbers

| Metric | 柚子字帖 | Question AI |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 95 MB | 11 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [敬 潘](https://appshunter.io/developer/1630712468) | [Hassan Ahmad Babar](https://appshunter.io/developer/1895284920) |

## What reviewers say

### 柚子字帖

[App page](https://appshunter.io/ios/app/id6747802245)

**Features:** Vision Pro support

**In-app purchases:** none


### Question AI

[App page](https://appshunter.io/ios/app/question-ai-math-solver-app/id6763371387)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $3.99 | per 7 days |
| Month | $7.99 | per month |
| Year | $19.99 | per year |


## Frequently asked questions

### Is 柚子字帖 free?

柚子字帖 costs $1.99, with no in-app purchases.

### Is Question AI free?

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

### Do 柚子字帖 or Question AI have ads?

Neither 柚子字帖 nor Question AI shows ads.

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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.*