# S vs ECG Journal

The clearest difference is update cadence: ECG Journal at daily against S's every 2 months. S's advantage is iOS requirement (15.1 vs 17.0). On price, ads, 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.

S ships an update every 2 months, ECG Journal daily. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | S | ECG Journal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Size | 34 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Wellysis Corp.](https://appshunter.io/developer/1493160661) | [Merge Labs Ltd](https://appshunter.io/developer/1769410270) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-patch-medi-mobile/id1665374269)

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

**In-app purchases:** none


### ECG Journal

[App page](https://appshunter.io/ios/app/ecg-journal/id6762023177)

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

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is ECG Journal free?

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

### Do S or ECG Journal have ads?

Neither S nor ECG Journal shows ads.

### Which is updated more often, S or ECG Journal?

S ships an update every 2 months, and ECG Journal daily. Most recently, S was updated on October 6, 2026 and ECG Journal on September 28, 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.*