Istel ECG vs QT ECG
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Istel ECG
This application works with a compatible recorder to perform quick ECG tests. It displays heart electrical activity, stores measurement history, and allows for easy sharing of results. Configuration of device parameters and PDF export are also supported.
- Real-time ECG signal display
- Measurement history tracking
- Built-in browser for interpretation
- Device parameter configuration
- Export measurements to PDF
- Share measurement results
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This Istel ECG App and a mobile Istel HR-2000 recorder can be used to carry out a quick and easy ECG test. The app can record measurement results and the built-in browser displays signals from the six limb electrodes to make test interpretation easier. Main App features: - displaying the electrical activity of the heart muscle from Istel HR-2000 - measurement history - built-in browser used to display results recorded through the six limb electrodes - configuration of operating parameters of the Istel HR-2000 device - exporting measurements to PDF - measurement sharing Medical disclaimer: Do not do any medical activities without consultation with your doctor. Do not change your treatment based on measurement results without consulting with your doctor. If your measurement result is not consistent with your symptoms, you should contact your doctor and follow his instructions. The Istel ECG application is intended for the market of the EEA. This app uses the SQLCipher library under the following license: https://www.zetetic.net/sqlcipher/license/
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 rating: QT ECG at 3.4 against Istel ECG's 3.0. QT ECG also leads on ratings volume (5 vs 1). Istel ECG's advantage is iOS requirement (10.0 vs 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.
QT ECG holds the better App Store score, 3.4 against 3.0. That said, the two scores are not equally well evidenced: QT ECG has 5 ratings behind it against 1, so its average is the more settled of the two.
Istel ECG ships an update every 3 months, QT ECG every 2 months. Both last shipped on November 2, 2026.
| Parameter | Istel ECG | QT ECG |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 3.4 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 22 MB | 58 MB |
| Age rating | 17+ | 4+ |
| Developer | Diagnosis S.A. | QT Medical, Inc. |
Customer experience
Istel ECG
QT ECG
In-app purchases
Istel ECG
No in-app purchases
QT ECG
No in-app purchases







