# VTE Calc vs Dr ECG

The clearest difference is rating: VTE Calc at 4.8 against Dr ECG's 3.0. VTE Calc also leads on update cadence (every 2 days vs every 6 weeks) and iOS requirement (9.0 vs 12.0). Dr ECG's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. VTE Calc sells 1 one-off in-app purchase. Dr ECG asks for nothing beyond the download.

VTE Calc holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

VTE Calc ships an update every 2 days, Dr ECG every 6 weeks. The most recent releases landed on August 15, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | VTE Calc | Dr ECG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/vte-calc/id1335332895/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/dr-ecg/id1437641000/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 20 MB | 86 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Lindum Medical Ltd](https://appshunter.io/developer/1092857686) | [Singapore Health Services Pte Ltd](https://appshunter.io/developer/395642269) |

## What reviewers say

### VTE Calc

[App page](https://appshunter.io/ios/app/vte-calc/id1335332895)

This medical app provides quick access to common scoring systems for calculating the risk of deep venous thrombosis (DVT) or pulmonary embolism (PE). It includes Wells' scores for DVT and PE, the PERC score, and a built-in creatinine clearance calculator for administering low molecular weight heparins.

**Highlights:** Wells' score for DVT, Wells' score for PE, PERC score, Creatinine clearance calculator, Risk assessment tools

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VTE Calc - remove advertising | $0.99 | one-time |


### Dr ECG

[App page](https://appshunter.io/ios/app/dr-ecg/id1437641000)

An interactive ECG teaching application developed by cardiologists for medical professionals and students. It features case-based examples, quizzes, and practical tips to enhance ECG interpretation skills. Endorsed by major cardiology societies.

**Highlights:** Interactive ECG teaching, Case-based examples, Quizzes, Tips and tricks, Endorsed by cardiology societies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VTE Calc free?

VTE Calc is free to download, with in-app purchases available.

### Is Dr ECG free?

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

### Which has better reviews, VTE Calc or Dr ECG?

VTE Calc is rated higher. VTE Calc averages 4.8 out of 5 from 4 ratings, while Dr ECG averages 3.0 from 2 ratings.

### Do VTE Calc or Dr ECG have ads?

Neither VTE Calc nor Dr ECG shows ads.

### Which is updated more often, VTE Calc or Dr ECG?

VTE Calc ships an update every 2 days, and Dr ECG every 6 weeks. Most recently, VTE Calc was updated on August 15, 2026 and Dr ECG on June 1, 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.*