# Complicated problem solving vs UCAT Test by Rocket Prep 2026

The clearest difference is in-app purchases: Complicated problem solving at none against UCAT Test by Rocket Prep 2026's 10. Complicated problem solving also leads on update cadence (every 9 days vs monthly). On price, ads, device support and iOS requirement 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. Complicated problem solving asks for nothing beyond the download.

Complicated problem solving ships an update every 9 days, UCAT Test by Rocket Prep 2026 monthly. The most recent releases landed on September 19, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Complicated problem solving | UCAT Test by Rocket Prep 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Size | 48 MB | 48 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) |

## What reviewers say

### Complicated problem solving

[App page](https://appshunter.io/ios/app/complicated-problem-solving/id1526663206)

**Features:** macOS Compatibility

**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 Complicated problem solving free?

Complicated problem solving 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.

### Do Complicated problem solving or UCAT Test by Rocket Prep 2026 have ads?

Neither Complicated problem solving nor UCAT Test by Rocket Prep 2026 shows ads.

### Which is updated more often, Complicated problem solving or UCAT Test by Rocket Prep 2026?

Complicated problem solving ships an update every 9 days, and UCAT Test by Rocket Prep 2026 monthly. Most recently, Complicated problem solving was updated on September 19, 2026 and UCAT Test by Rocket Prep 2026 on September 23, 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.*