Comparison

Istel ECG vs QT ECG

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Real-time ECG signal display
  • Measurement history tracking
  • Built-in browser for interpretation
  • Device parameter configuration
  • Export measurements to PDF
  • Share measurement results
Read full description

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/

About

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.

Highlights
  • Hospital-quality 12-lead ECG recording
  • Bluetooth connectivity to smart devices
  • HIPAA/GDPR-compliant cloud transmission
  • Physician interpretation ready
  • High-quality ECG display
Read full description

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

Istel ECG3 screens
QT ECG3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Istel ECG ships an update every 3 months, QT ECG every 2 months. Both last shipped on November 2, 2026.

Scorecard3 real differences · 7 level
Istel ECG versus QT ECG: the parameters behind the verdict, then further details
ParameterIstel ECGQT ECG
PriceFreeFree
Rating3.0 (1 ratings)3.4 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size22 MB58 MB
Age rating17+4+
DeveloperDiagnosis S.A.QT Medical, Inc.

Customer experience

Istel ECG

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

QT ECG

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Istel ECG

No in-app purchases

None

QT ECG

No in-app purchases

Questions

Is Istel ECG free?
Istel ECG is free to download, with no in-app purchases.
Is QT ECG free?
QT ECG is free to download, with no in-app purchases.
Which has better reviews, Istel ECG or QT ECG?
QT ECG is rated higher. Istel ECG averages 3.0 out of 5 from 1 ratings, while QT ECG averages 3.4 from 5 ratings.
Do Istel ECG or QT ECG have ads?
Neither Istel ECG nor QT ECG shows ads.
Which is updated more often, Istel ECG or QT ECG?
Istel ECG ships an update every 3 months, and QT ECG every 2 months. Most recently, Istel ECG was updated on November 2, 2026 and QT ECG on November 2, 2026.

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