# Angels Stopwatch vs EchoRef

The clearest difference is ratings volume: EchoRef at 1.4K against Angels Stopwatch's 1. Angels Stopwatch's advantage is iOS requirement (10.0 vs 26.0). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Angels Stopwatch against 4.9 for EchoRef. That said, the two scores are not equally well evidenced: EchoRef has 1.4K ratings behind it against 1, so its average is the more settled of the two.

Angels Stopwatch ships an update every 3 months, EchoRef every 2 months. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Angels Stopwatch | EchoRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/angels-stopwatch/id1305822512/reviews)** | [4.9 (1.4K ratings)](https://appshunter.io/ios/app/echoref/id1434016053/reviews) |
| Number of ratings | 1 | **1.4K** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 67 MB | 105 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Boehringer Ingelheim Pharma GmbH & Co.KG](https://appshunter.io/developer/556736130) | [Rishi Kumar](https://appshunter.io/developer/1434016052) |

## What reviewers say

### Angels Stopwatch

[App page](https://appshunter.io/ios/app/angels-stopwatch/id1305822512)

This medical app functions as a digital stopwatch designed to help stroke teams track Door to Therapy time. It records procedure times, provides detailed performance history, and allows users to set target times with visual feedback. Gamified elements like badges and levels encourage faster treatment times.

**Highlights:** Door to Therapy time monitoring, Procedure time logging, Detailed performance history, Customizable target times, Visual status bar feedback, Achievement badges and levels, Data sharing with RESQ Registry

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

**In-app purchases:** none


### EchoRef

[App page](https://appshunter.io/ios/app/echoref/id1434016053)

This educational reference app provides comprehensive information on point-of-care ultrasound (POCUS), echocardiography, and cardiac measurements. It includes lessons on interventional procedures and hemodynamic calculations for medical professionals.

**Highlights:** Point-of-care ultrasound (POCUS), Transthoracic echocardiography (TTE), Transesophageal echocardiography (TEE), Cardiac dimensions and valve measurements, Hemodynamic and ultrasound calculations, Interventional procedure lessons

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

**In-app purchases:** none


## Frequently asked questions

### Is Angels Stopwatch free?

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

### Is EchoRef free?

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

### Which has better reviews, Angels Stopwatch or EchoRef?

Angels Stopwatch is rated higher. Angels Stopwatch averages 5.0 out of 5 from 1 ratings, while EchoRef averages 4.9 from 1.4K ratings.

### Do Angels Stopwatch or EchoRef have ads?

Neither Angels Stopwatch nor EchoRef shows ads.

### Which is updated more often, Angels Stopwatch or EchoRef?

Angels Stopwatch ships an update every 3 months, and EchoRef every 2 months. Most recently, Angels Stopwatch was updated on September 9, 2026 and EchoRef on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*