# 小脚印 Footprint vs AI时辰大师

The clearest difference is in-app purchases: AI时辰大师 at none against 小脚印 Footprint's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 小脚印 Footprint sells 1 in-app purchase, starting at $0.99 per month. AI时辰大师 asks for nothing beyond the download.

## The numbers

| Metric | 小脚印 Footprint | AI时辰大师 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 4 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [雪苗 林](https://appshunter.io/developer/1800587536) | [Dawei Bi](https://appshunter.io/developer/1823242521) |

## What reviewers say

### 小脚印 Footprint

[App page](https://appshunter.io/ios/app/footprint/id6755595490)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度订阅 | $0.99 | per month |


### AI时辰大师

[App page](https://appshunter.io/ios/app/ai/id6760635743)

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

**In-app purchases:** none


## Frequently asked questions

### Is 小脚印 Footprint free?

小脚印 Footprint is free to download, with in-app purchases available.

### Is AI时辰大师 free?

AI时辰大师 is free to download, with no in-app purchases.

### Do 小脚印 Footprint or AI时辰大师 have ads?

Neither 小脚印 Footprint nor AI时辰大师 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.*