# UmbiCalc vs STABLEize for HealthStream

UmbiCalc and STABLEize for HealthStream both sit at 5.0 stars, but that hides the real split: 100% of UmbiCalc's written reviews are positive against 0% of STABLEize for HealthStream's. STABLEize for HealthStream's advantage is update cadence (every 2 months vs every 12 months). On price, rating, ratings volume 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 UmbiCalc against 5.0 for STABLEize for HealthStream. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews are what separate them: 100% of UmbiCalc's written reviews are positive against 0% of STABLEize for HealthStream's.

UmbiCalc ships an update every 12 months, STABLEize for HealthStream every 2 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | UmbiCalc | STABLEize for HealthStream |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/umbicalc/id1504095676/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/stableize-for-healthstream/id1585560211/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 67 MB | 57 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Yale](https://appshunter.io/developer/462262997) | [The STABLE Program](https://appshunter.io/developer/1467136637) |

## What reviewers say

### UmbiCalc

[App page](https://appshunter.io/ios/app/umbicalc/id1504095676)

This medical app estimates umbilical catheter insertion lengths for neonates based on birth weight. It utilizes an algorithm derived from statistical modeling and is intended for educational use by healthcare professionals. Always consult a medical provider for health advice.

**Highlights:** Umbilical arterial catheter estimation, Umbilical venous catheter estimation, Birth weight-based calculations, Based on published algorithm, For educational purposes

**In-app purchases:** none


### STABLEize for HealthStream

[App page](https://appshunter.io/ios/app/stableize-for-healthstream/id1585560211)

A quick reference bedside tool for healthcare professionals caring for infants. It provides essential guidelines, calculators, and detailed information on severe cardiac anomalies with animated explanations.

**Highlights:** Bedside infant care reference, S.T.A.B.L.E. Program Module Guidelines, 22 severe cardiac anomaly animations, 4 medical calculators, Congenital heart disease information, Ductal dependent lesion impact

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UmbiCalc free?

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

### Is STABLEize for HealthStream free?

STABLEize for HealthStream is free to download, with no in-app purchases.

### Which has better reviews, UmbiCalc or STABLEize for HealthStream?

UmbiCalc and STABLEize for HealthStream are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do UmbiCalc or STABLEize for HealthStream have ads?

Neither UmbiCalc nor STABLEize for HealthStream shows ads.

### Which is updated more often, UmbiCalc or STABLEize for HealthStream?

UmbiCalc ships an update every 12 months, and STABLEize for HealthStream every 2 months. Most recently, UmbiCalc was updated on October 29, 2026 and STABLEize for HealthStream 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.*