UmbiCalc vs NeoFast Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UmbiCalc
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.
- Umbilical arterial catheter estimation
- Umbilical venous catheter estimation
- Birth weight-based calculations
- Based on published algorithm
- For educational purposes
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This app provides the birth weight-based insertion length estimations for umbilical arterial and venous catheters placed in neonates in the Neonatal Intensive Care Unit. UmbiCalc is based on the algorithm described by Tambasco et al. in “A Novel and Accurate Method for Estimating Umbilical Arterial and Venous Catheter Insertion Length.” Journal of Perinatology 2021. The algorithm was derived from statistical modeling using a representative sample of the current NICU population and validated across a wide range of birth weights. Intended for use by neonatologists, pediatricians, and advanced practice providers for personal educational purposes only. It is not intended for use in clinical practice or the delivery of medical care. Always consult with a healthcare provider for advice concerning your health.
NeoFast Calc
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.
- Prescriptive drug dosing assistance
- Drug interaction details
- Adverse reaction information
- International brand names
- Dose adjustment for renal/hepatic impairment
- Extensive drug presentation database
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An intuitive tool that aims to make the daily routine of all healthcare professionals who care for children and newborns easier. This application is based on several sources from national and international literature to assist in prescribing according to the dose stipulated by the neonatologist. In addition, it has a range of additional information on drug interactions, antagonists (in cases of poisoning or overdose), adverse reactions, international brands names, stability and conservation, dose adjustment in renal and hepatic impairment, general guidelines, etc. It also has more than 990 drug presentations and more than 160 worldwide bibliographic references. Therefore, it is a tool that ensures safety and agility on medical duty. Privacy Policy (EULA): https://neofastapp.com/privacy-terms/ Terms of use: https://neofastapp.com/privacy-terms/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | UmbiCalc | NeoFast Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 4 — better | — |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 67 MB | 195 MB |
| Age rating | 4+ | 17+ |
| Developer | Yale | Ponto Direto Tech Ltda |
Customer experience
UmbiCalc
NeoFast Calc
In-app purchases
UmbiCalc
No in-app purchases
NeoFast Calc
- NeoFast® - Monthly Plan1 Month trial$5.991 Month
- NeoFast® - Yearly Plan1 Month trial$59.991 Year







