# HAT vs AI PEN Pro

The clearest difference is update cadence: AI PEN Pro at every 11 days against HAT's every 4 months. HAT's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HAT ships an update every 4 months, AI PEN Pro every 11 days. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | HAT | AI PEN Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 11 days** |
| Size | 40 MB | 93 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [hikvision](https://appshunter.io/developer/1222251068) | [伟才 韦](https://appshunter.io/developer/1638023194) |

## What reviewers say

### HAT

[App page](https://appshunter.io/ios/app/hat-360/id6472250771)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI PEN Pro

[App page](https://appshunter.io/ios/app/ai-pen-pro/id6745867900)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HAT free?

HAT is free to download, with no in-app purchases.

### Is AI PEN Pro free?

AI PEN Pro is free to download, with no in-app purchases.

### Do HAT or AI PEN Pro have ads?

Neither HAT nor AI PEN Pro shows ads.

### Which is updated more often, HAT or AI PEN Pro?

HAT ships an update every 4 months, and AI PEN Pro every 11 days. Most recently, HAT was updated on October 27, 2026 and AI PEN Pro on October 7, 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.*