# ECG QS vs WITTE

The clearest difference is ads: ECG QS at none against WITTE's shown. ECG QS also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ECG QS ships an update every 5 weeks, WITTE every 2 months. The most recent releases landed on September 16, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | ECG QS | WITTE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 88 MB | 26 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [disserto management gmbh](https://appshunter.io/developer/1447495305) | [Hitabis GmbH](https://appshunter.io/developer/909618302) |

## What reviewers say

### ECG QS

[App page](https://appshunter.io/ios/app/ecg-qs-app/id1447495306)

**Features:** macOS Compatibility

**In-app purchases:** none


### WITTE

[App page](https://appshunter.io/ios/app/witte/id1449563258)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECG QS free?

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

### Is WITTE free?

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

### Do ECG QS or WITTE have ads?

WITTE shows ads; ECG QS does not.

### Which is updated more often, ECG QS or WITTE?

ECG QS ships an update every 5 weeks, and WITTE every 2 months. Most recently, ECG QS was updated on September 16, 2026 and WITTE 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.*