# Master Change vs ISTQB Study Buddy CTFL

The clearest difference is in-app purchases: Master Change at none against ISTQB Study Buddy CTFL's 2. ISTQB Study Buddy CTFL's advantage is update cadence (daily vs every 3 weeks) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

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

Master Change ships an update every 3 weeks, ISTQB Study Buddy CTFL daily. The most recent releases landed on September 10, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Master Change | ISTQB Study Buddy CTFL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 143 MB | 18 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VB MANAGEMENT](https://appshunter.io/developer/1750348396) | [Roland Ross Lacdan Hadi](https://appshunter.io/developer/1678311523) |

## What reviewers say

### Master Change

[App page](https://appshunter.io/ios/app/master-change/id1538777530)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Master Change free?

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

### Is ISTQB Study Buddy CTFL free?

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

### Do Master Change or ISTQB Study Buddy CTFL have ads?

Neither Master Change nor ISTQB Study Buddy CTFL shows ads.

### Which is updated more often, Master Change or ISTQB Study Buddy CTFL?

Master Change ships an update every 3 weeks, and ISTQB Study Buddy CTFL daily. Most recently, Master Change was updated on September 10, 2026 and ISTQB Study Buddy CTFL on August 24, 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.*