# Istel ECG vs ECG Tracker+ EKG Reader HRV

The clearest difference is rating: ECG Tracker+ EKG Reader HRV at 3.6 against Istel ECG's 3.0. ECG Tracker+ EKG Reader HRV also leads on update cadence (weekly vs every 3 months) and ratings volume (28 vs 1). Istel ECG's advantage is in-app purchases (none vs 5) and iOS requirement (10.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. ECG Tracker+ EKG Reader HRV sells 3 in-app purchases, starting at $7.99 per month. Istel ECG asks for nothing beyond the download.

ECG Tracker+ EKG Reader HRV holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: ECG Tracker+ EKG Reader HRV has 28 ratings behind it against 1, so its average is the more settled of the two.

Istel ECG ships an update every 3 months, ECG Tracker+ EKG Reader HRV weekly. The most recent releases landed on October 15, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Istel ECG | ECG Tracker+ EKG Reader HRV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/istel-ecg/id1238398630/reviews) | **[3.6 (28 ratings)](https://appshunter.io/ios/app/ecg-tracker-plus-ekg-reader-hrv/id6758300705/reviews)** |
| Number of ratings | 1 | **28** |
| Positive reviews | — | 46.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 22 MB | 116 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 12+ |
| Developer | [Diagnosis S.A.](https://appshunter.io/developer/1238398629) | [Artur Teodorowicz](https://appshunter.io/developer/1872068468) |

## What reviewers say

### Istel ECG

[App page](https://appshunter.io/ios/app/istel-ecg/id1238398630)

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

**In-app purchases:** none


### ECG Tracker+ EKG Reader HRV

[App page](https://appshunter.io/ios/app/ecg-tracker-plus-ekg-reader-hrv/id6758300705)

Analyze ECG recordings from compatible health apps on a calibrated grid. Measure key metrics like HRV and QTc, track trends over time, and export detailed PDF reports. All processing is done on-device for enhanced privacy.

**Highlights:** Calibrated waveform grid review, HRV, QTc, QRS duration measurement, Trend tracking over time, Notes and symptom tagging, Shareable PDF report export, On-device processing

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG Tracker+ Pro Monthly | $7.99 | per month |
| ECG Tracker+ Pro Yearly | $59.99 | per year |
| ECG Tracker+ Pro Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is Istel ECG free?

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

### Is ECG Tracker+ EKG Reader HRV free?

ECG Tracker+ EKG Reader HRV is free to download, with in-app purchases available.

### Which has better reviews, Istel ECG or ECG Tracker+ EKG Reader HRV?

ECG Tracker+ EKG Reader HRV is rated higher. Istel ECG averages 3.0 out of 5 from 1 ratings, while ECG Tracker+ EKG Reader HRV averages 3.6 from 28 ratings.

### Do Istel ECG or ECG Tracker+ EKG Reader HRV have ads?

Neither Istel ECG nor ECG Tracker+ EKG Reader HRV shows ads.

### Which is updated more often, Istel ECG or ECG Tracker+ EKG Reader HRV?

Istel ECG ships an update every 3 months, and ECG Tracker+ EKG Reader HRV weekly. Most recently, Istel ECG was updated on October 15, 2026 and ECG Tracker+ EKG Reader HRV on October 26, 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.*