# Watson vs AT

The clearest difference is device support: Watson at 3 against AT's 1. Watson also leads on iOS requirement (13.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Watson sells 1 one-off in-app purchase and AT sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Watson | AT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 24 MB | 62 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [fly sky pty ltd](https://appshunter.io/developer/1838696534) | [Maksym Bezruchko](https://appshunter.io/developer/1884307829) |

## What reviewers say

### Watson

[App page](https://appshunter.io/ios/app/watson-glaser-test-prep/id6774839071)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Access | $4.99 | one-time |


### AT

[App page](https://appshunter.io/ios/app/at-sat-prep-2026/id6785216997)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $1.99 | per 7 days |
| Monthly subscription | $4.99 | per month |


## Frequently asked questions

### Is Watson free?

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

### Is AT free?

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

### Do Watson or AT have ads?

Neither Watson nor AT 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.*