# SIIL Student vs Watson

The clearest difference is in-app purchases: SIIL Student at none against Watson's 4. Watson's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Watson sells 4 in-app purchases, starting at $6.99 per 7 days. SIIL Student asks for nothing beyond the download.

SIIL Student ships an update every 3 weeks, Watson fortnightly. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SIIL Student | Watson |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 70 MB | 24 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Swiss international institute Lausanne - SIIL Sarl](https://appshunter.io/developer/1725789459) | [FLY SKY PTY LTD](https://appshunter.io/developer/1838696534) |

## What reviewers say

### SIIL Student

[App page](https://appshunter.io/ios/app/siil-student/id6476093571)

**Features:** macOS Compatibility

**In-app purchases:** none


### Watson

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

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Watson-Glaser Full Access | $6.99 | per 7 days |
| Watson-Glaser Full Access | $16.99 | per month |
| Watson-Glaser Full Access | $39.99 | per 3 months |
| Unlock Full Access | $4.99 | one-time |


## Frequently asked questions

### Is SIIL Student free?

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

### Is Watson free?

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

### Do SIIL Student or Watson have ads?

SIIL Student shows ads; Watson does not.

### Which is updated more often, SIIL Student or Watson?

SIIL Student ships an update every 3 weeks, and Watson fortnightly. Most recently, SIIL Student was updated on October 1, 2026 and Watson on October 10, 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.*