# ISTQB Study Buddy CTFL vs Knowra

The clearest difference is in-app purchases: Knowra at none against ISTQB Study Buddy CTFL's 2. ISTQB Study Buddy CTFL's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. ISTQB Study Buddy CTFL sells 2 one-off in-app purchases. Knowra asks for nothing beyond the download.

## The numbers

| Metric | ISTQB Study Buddy CTFL | Knowra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Daily | — |
| Size | 18 MB | 9 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Roland Ross Lacdan Hadi](https://appshunter.io/developer/1678311523) | [LE ANH TUAN](https://appshunter.io/developer/1857237273) |

## What reviewers say

### ISTQB Study Buddy CTFL

[App page](https://appshunter.io/ios/app/istqb-study-buddy-ctfl/id6446593084)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ISTQB Study Buddy CTFL | $6.99 | one-time |
| Full Version | $6.99 | one-time |


### Knowra

[App page](https://appshunter.io/ios/app/knowra-learn-without-trying/id6762287107)

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

**In-app purchases:** none


## Frequently asked questions

### Is ISTQB Study Buddy CTFL free?

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

### Is Knowra free?

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

### Do ISTQB Study Buddy CTFL or Knowra have ads?

Neither ISTQB Study Buddy CTFL nor Knowra shows ads.

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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.*