Multi vs QT ECG
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Multi
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The Multi-ECG app allows - in combination with the CardioScout Multi-ECG recorder - the first mobile resting ECG recording with the iPod, iPad and iPhone. The derived ECG data are sent online via Bluetooth from the ECG recorder to the iOS device and displayed on the screen. The ECG data can be stored locally or – as an option - on a server. The server stored data can be visualized and handled with any web browser over a secure connection. In addition, the server stored data can be downloaded and processed into our VMX00 resting ECG software. If you are using our Cardio cout Multi-ECG as a holter the Multi-ECG app can be used for the startup online control. The app further allows the manual collection and graphical presentation of weight, blood pressure and glucose levels. - mobile recording of resting ECG with the iPod, iPad and iPhone - mobile online control system for operating the Holter - storing the ECG data - optional storage on a server (10 Euro / month) - optional download in the resting ECG software VMX00 - detection of weight, blood pressure and glucose values
QT ECG
Record and transmit high-quality 12-lead ECGs for physician interpretation. This app connects to compatible smart devices via Bluetooth to display and send ECG data to a secure cloud. An account with the developer is required for use.
- Hospital-quality 12-lead ECG recording
- Bluetooth connectivity to smart devices
- HIPAA/GDPR-compliant cloud transmission
- Physician interpretation ready
- High-quality ECG display
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Hospital-quality 12-lead ECG designed for personal use QT ECG™ is designed for use by a patient or a healthcare worker to record electrocardiogram (ECG) and transmit to a HIPAA and/or GDPR-compliant cloud for physician interpretation. QT ECG™ connects with compatible smartmobile devices via Bluetooth, and displays high quality full 12-lead ECG and transmits to the cloud. You will need an account with QT Medical (www.qtmedical.com) to use this app.
Screenshots
Verdict
The clearest difference is iOS requirement: Multi at 8.2 against QT ECG's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Multi ships an update every 3 months, QT ECG every 2 months. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.
| Parameter | Multi | QT ECG |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.4 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 11 MB | 58 MB |
| Age rating | 17+ | 4+ |
| Developer | Sarah Richter | QT Medical, Inc. |
In-app purchases
Multi
No in-app purchases
QT ECG
No in-app purchases







