S vs ECG Journal
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
S
Read full descriptionHide full description
The S-Patch Medi is an app that manages the status of S-Patch devices and any ongoing ECG tests. Key feature of the S-Patch Medi App: - Manage ECG test for a particular S-Patch device - Send completed ECG recording for analysis Jurisdiction Statement: S-Patch currently has regulatory clearance in the following region(s): South Korea. The use of S-Patch is to be prescribed and interpreted only by the accredited physicians or healthcare providers from these regions, or any institutions that are conducting a clinical research with a formal IRB (Institutional Review Board) approval. The users shall confirm the product regulatory status with their provider.
ECG Journal
Read full descriptionHide full description
ECG Journal helps you keep an ECG library organized with the context that matters. Review your ECG history in a clean timeline, add notes, organize records with tags, and filter by symptoms or keywords. When available, ECG Journal can also use HealthKit data to show nearby blood pressure readings alongside your ECG entries. Features: - Browse ECG records in a simple journal view - Add notes to individual ECG entries - Organize entries with custom tags - Filter by tags, symptoms, and note text - View ECG details with rhythm, heart rate, and waveform - Link nearby blood pressure readings from HealthKit and easily view their average - HealthKit sync ECG Journal is designed for personal record keeping and easier review of your ECG history. It is not intended to diagnose, treat, or replace professional medical advice.
Screenshots
Verdict
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.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
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.
| Parameter | S | ECG Journal |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Daily โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.1 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 34 MB | 4 MB |
| Age rating | 12+ | 17+ |
| Developer | Wellysis Corp. | Merge Labs Ltd |
In-app purchases
S
No in-app purchases
ECG Journal
No in-app purchases









