# Lookingbill & Marks' Derm. 5E vs ECG

The clearest difference is price: ECG at Free against Lookingbill & Marks' Derm. 5E's $64.99. ECG also leads on update cadence (fortnightly vs every 11 months). Lookingbill & Marks' Derm. 5E's advantage is ads (none vs shown) and iOS requirement (10.0 vs 12.0). On in-app purchases and device support there is nothing between them.

ECG is free to download; Lookingbill & Marks' Derm. 5E costs $64.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lookingbill & Marks' Derm. 5E ships an update every 11 months, ECG fortnightly. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Lookingbill & Marks' Derm. 5E | ECG |
| --- | --- | --- |
| Price | $64.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Fortnightly** |
| Size | 109 MB | 37 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Usatine & Erickson Media LLC](https://appshunter.io/developer/1466894388) | [Putu Angga Risky Raharja](https://appshunter.io/developer/1164107753) |

## What reviewers say

### Lookingbill & Marks' Derm. 5E

[App page](https://appshunter.io/ios/app/lookingbill-and-marks-derm-5e/id685800115)

**Features:** macOS Compatibility

**In-app purchases:** none


### ECG

[App page](https://appshunter.io/ios/app/ecg-corrected-qt-interval/id1575723032)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lookingbill & Marks' Derm. 5E free?

Lookingbill & Marks' Derm. 5E costs $64.99, with no in-app purchases.

### Is ECG free?

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

### Do Lookingbill & Marks' Derm. 5E or ECG have ads?

ECG shows ads; Lookingbill & Marks' Derm. 5E does not.

### Which is updated more often, Lookingbill & Marks' Derm. 5E or ECG?

Lookingbill & Marks' Derm. 5E ships an update every 11 months, and ECG fortnightly. Most recently, Lookingbill & Marks' Derm. 5E was updated on November 1, 2026 and ECG on October 27, 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.*