# UmbiCalc vs NeoFast Calc

The clearest difference is in-app purchases: UmbiCalc at none against NeoFast Calc's 2. UmbiCalc also leads on review sentiment (100% vs 80%) and iOS requirement (12.0 vs 15.6). NeoFast Calc's advantage is update cadence (fortnightly vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. NeoFast Calc sells 2 in-app purchases, starting at $5.99 per month. UmbiCalc asks for nothing beyond the download.

UmbiCalc ships an update every 12 months, NeoFast Calc fortnightly. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | UmbiCalc | NeoFast Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/umbicalc/id1504095676/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 67 MB | 195 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Yale](https://appshunter.io/developer/462262997) | [Ponto Direto Tech Ltda](https://appshunter.io/developer/1789425714) |

## 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


### NeoFast Calc

[App page](https://appshunter.io/ios/app/neofast-calc/id6740295230)

This medical reference tool simplifies daily tasks for healthcare professionals caring for newborns and children. It provides evidence-based prescribing assistance, drug interaction information, and detailed drug data. The app aims to enhance safety and efficiency during medical duties.

**Highlights:** Prescriptive drug dosing assistance, Drug interaction details, Adverse reaction information, International brand names, Dose adjustment for renal/hepatic impairment, Extensive drug presentation database

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NeoFast® - Monthly Plan | $5.99 | per month |
| NeoFast® - Yearly Plan | $59.99 | per year |


## Frequently asked questions

### Is UmbiCalc free?

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

### Is NeoFast Calc free?

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

### Do UmbiCalc or NeoFast Calc have ads?

Neither UmbiCalc nor NeoFast Calc shows ads.

### Which is updated more often, UmbiCalc or NeoFast Calc?

UmbiCalc ships an update every 12 months, and NeoFast Calc fortnightly. Most recently, UmbiCalc was updated on October 3, 2026 and NeoFast Calc on October 25, 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.*