# NIST vs UCAT Test by Rocket Prep 2026

The clearest difference is in-app purchases: NIST at none against UCAT Test by Rocket Prep 2026's 10. NIST also leads on iOS requirement (13.0 vs 15.1). UCAT Test by Rocket Prep 2026's advantage is device support. On price there is nothing between them.

Both are free to download. UCAT Test by Rocket Prep 2026 sells 10 in-app purchases, starting at $3.99 per 7 days. NIST asks for nothing beyond the download.

## The numbers

| Metric | NIST | UCAT Test by Rocket Prep 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 28 MB | 55 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NIST International School](https://appshunter.io/developer/1802998363) | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) |

## What reviewers say

### NIST

[App page](https://appshunter.io/ios/app/nist/id6743459072)

**In-app purchases:** none


### UCAT Test by Rocket Prep 2026

[App page](https://appshunter.io/ios/app/ucat-test-by-rocket-prep-2026/id6744275912)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UCAT Weekly Full Access | $3.99 | per 7 days |
| UCAT weekly subscription | $7.99 | per 7 days |
| UCAT Monthly Full Access | $9.99 | per month |
| UCAT Monthly Full Access | $9.99 | per month |
| UCAT monthly subscription | $17.99 | per month |
| UCAT Monthly Full Access | $17.99 | per month |
| UCAT exam simulation 1 Try | $4.99 | one-time |
| UCAT exam simulation 3 Tries | $9.99 | one-time |
| UCAT exam simulation 5 Tries | $14.99 | one-time |
| UCAT exam simulation 7 Try | $19.99 | one-time |


## Frequently asked questions

### Is NIST free?

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

### Is UCAT Test by Rocket Prep 2026 free?

UCAT Test by Rocket Prep 2026 is free to download, with in-app purchases available.

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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.*