# ISTQB Study Buddy AI vs ISTQB Usability Testing

The clearest difference is update cadence: ISTQB Usability Testing at every 3 weeks against ISTQB Study Buddy AI's every 40 months. ISTQB Study Buddy AI's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.2). On price, ads and in-app purchases there is nothing between them.

Both are free to download. ISTQB Study Buddy AI sells 1 one-off in-app purchase and ISTQB Usability Testing sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ISTQB Study Buddy AI ships an update every 40 months, ISTQB Usability Testing every 3 weeks. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ISTQB Study Buddy AI | ISTQB Usability Testing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 3 weeks** |
| Size | 18 MB | 9 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Roland Ross Lacdan Hadi](https://appshunter.io/developer/1678311523) | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) |

## What reviewers say

### ISTQB Study Buddy AI

[App page](https://appshunter.io/ios/app/istqb-study-buddy-ai/id6446845986)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ISTQB Study Buddy AI | $7.99 | one-time |


### ISTQB Usability Testing

[App page](https://appshunter.io/ios/app/istqb-usability-testing/id6738763542)

**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 ISTQB Study Buddy AI free?

ISTQB Study Buddy AI is free to download, with in-app purchases available.

### Is ISTQB Usability Testing free?

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

### Do ISTQB Study Buddy AI or ISTQB Usability Testing have ads?

Neither ISTQB Study Buddy AI nor ISTQB Usability Testing shows ads.

### Which is updated more often, ISTQB Study Buddy AI or ISTQB Usability Testing?

ISTQB Study Buddy AI ships an update every 40 months, and ISTQB Usability Testing every 3 weeks. Most recently, ISTQB Study Buddy AI was updated on October 4, 2026 and ISTQB Usability Testing on October 7, 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.*