# ISTQB Usability Testing vs LingoJoyAI

The clearest difference is device support: LingoJoyAI at 3 against ISTQB Usability Testing's 1. LingoJoyAI 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. ISTQB Usability Testing sells 2 in-app purchases, starting at $9.99 per month and LingoJoyAI sells 1 in-app purchase, starting at $9.00 per month. Whichever you choose, the download price is not the number that matters.

ISTQB Usability Testing ships an update every 3 weeks, LingoJoyAI every 2 weeks. The most recent releases landed on September 20, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | ISTQB Usability Testing | LingoJoyAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 9 MB | 65 MB |
| Requires iOS | 17.2 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [juhwan choi](https://appshunter.io/developer/1798929646) |

## What reviewers say

### 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 |


### LingoJoyAI

[App page](https://appshunter.io/ios/app/lingojoyai/id6742548160)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Content Generation | $9.00 | per month |


## Frequently asked questions

### Is ISTQB Usability Testing free?

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

### Is LingoJoyAI free?

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

### Do ISTQB Usability Testing or LingoJoyAI have ads?

Neither ISTQB Usability Testing nor LingoJoyAI shows ads.

### Which is updated more often, ISTQB Usability Testing or LingoJoyAI?

ISTQB Usability Testing ships an update every 3 weeks, and LingoJoyAI every 2 weeks. Most recently, ISTQB Usability Testing was updated on September 20, 2026 and LingoJoyAI on September 13, 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.*