# AirStrip OB vs ECG Notes

The clearest difference is rating: ECG Notes at 4.7 against AirStrip OB's 4.0. ECG Notes also leads on ratings volume (12 vs 3). AirStrip OB's advantage is review sentiment (90% vs 50%) and in-app purchases (none vs 1). On price, update cadence and device support there is nothing between them.

Both are free to download. ECG Notes sells 1 one-off in-app purchase. AirStrip OB asks for nothing beyond the download.

ECG Notes holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 3 and 12 respectively. Written reviews complicate that: 90% of AirStrip OB's written reviews are positive against 50% of ECG Notes's, so the app with the better star average is not the one people write more warmly about.

AirStrip OB ships an update every 4 months, ECG Notes every 3 months. The most recent releases landed on June 5, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | AirStrip OB | ECG Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/airstrip-ob/id309381240/reviews) | **[4.7 (12 ratings)](https://appshunter.io/ios/app/ecg-notes-quick-look-up-ref/id1146393355/reviews)** |
| Number of ratings | 3 | **12** |
| Positive reviews | **90.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 46 MB |
| Requires iOS | **10.3** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [AirStrip Technologies, LLC](https://appshunter.io/developer/309381243) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### AirStrip OB

[App page](https://appshunter.io/ios/app/airstrip-ob/id309381240)

This application allows obstetricians to securely view real-time patient data, including fetal heart tracings and vital signs, from their iPhone. It enables remote access to labor and delivery unit information, facilitating care even when away from the bedside. An offline demo is included for feature exploration.

**Highlights:** View fetal heart tracings remotely, Access real-time waveform data, Securely log on to hospital systems, View patient census and nursing notes, Review historical patient data, Offline demo for feature exploration

**In-app purchases:** none


### ECG Notes

[App page](https://appshunter.io/ios/app/ecg-notes-quick-look-up-ref/id1146393355)

This pocket guide offers a quick reference for ECG interpretation and management, covering basics, 12-lead ECGs, ACLS, CPR, and emergency medications. It includes over 100 ECG strips and practice questions, with content updated to the latest guidelines. No internet connection is needed after initial download.

**Highlights:** 125 ECG rhythm strips, Comprehensive coverage: basics, ECG, ACLS, PALS, meds, CPR, CPR algorithms in tabular format, Test Yourself ECG strips with real-life arrhythmias, Clinical Tips and PALS coverage, SmartSearch technology for quick look-up, Offline content access

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG Notes-Ed.4 | $34.99 | one-time |


## Frequently asked questions

### Is AirStrip OB free?

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

### Is ECG Notes free?

ECG Notes is free to download, with in-app purchases available.

### Which has better reviews, AirStrip OB or ECG Notes?

ECG Notes is rated higher. AirStrip OB averages 4.0 out of 5 from 3 ratings, while ECG Notes averages 4.7 from 12 ratings.

### Do AirStrip OB or ECG Notes have ads?

ECG Notes shows ads; AirStrip OB does not.

### Which is updated more often, AirStrip OB or ECG Notes?

AirStrip OB ships an update every 4 months, and ECG Notes every 3 months. Most recently, AirStrip OB was updated on June 5, 2026 and ECG Notes on August 12, 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.*