# PSK Exam Simulator vs ISTQB Performance Testing

The clearest difference is device support: PSK Exam Simulator at 3 against ISTQB Performance Testing's 1. PSK Exam Simulator also leads on iOS requirement (15.6 vs 17.2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PSK Exam Simulator sells 3 in-app purchases, starting at $3.99 per month and ISTQB Performance Testing sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

PSK Exam Simulator ships an update every 5 weeks, ISTQB Performance Testing every 2 months. The most recent releases landed on September 9, 2026 and December 24, 2025 respectively.

## The numbers

| Metric | PSK Exam Simulator | ISTQB Performance Testing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 91 MB | 9 MB |
| Requires iOS | **15.6** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Duy Khanh](https://appshunter.io/developer/1345775745) | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) |

## What reviewers say

### PSK Exam Simulator

[App page](https://appshunter.io/ios/app/psk-exam-simulator/id1643914040)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Quarterly | $8.99 | per 3 months |
| Premium Yearly | $24.99 | per year |


### ISTQB Performance Testing

[App page](https://appshunter.io/ios/app/istqb-performance-testing/id6738596798)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $9.99 | per month |
| Lifetime version | $19.99 | one-time |


## Frequently asked questions

### Is PSK Exam Simulator free?

PSK Exam Simulator is free to download, with in-app purchases available.

### Is ISTQB Performance Testing free?

ISTQB Performance Testing is free to download, with in-app purchases available.

### Do PSK Exam Simulator or ISTQB Performance Testing have ads?

Neither PSK Exam Simulator nor ISTQB Performance Testing shows ads.

### Which is updated more often, PSK Exam Simulator or ISTQB Performance Testing?

PSK Exam Simulator ships an update every 5 weeks, and ISTQB Performance Testing every 2 months. Most recently, PSK Exam Simulator was updated on September 9, 2026 and ISTQB Performance Testing on December 24, 2025.

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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.*