GIR Calc vs UmbiCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GIR Calc
Calculate the Glucose Infusion Rate (GIR) for single or multiple IV drips. This tool is designed for medical professionals, particularly those in pediatrics or neonatal ICUs, to quickly determine essential fluid and sugar infusion rates.
- Calculate GIR for single or multiple IV drips
- Input weight in kg
- Input sugar percentage and volume (ml/hr)
- Handles non-sugar containing fluids
- Simple calculation button
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-Up to eight simultaneous drips -Live results, rounded to two decimal places -Dextrose presets for D5, D10, D12.5, D15, D20, and D25 -Solve for rate: pick a target GIR and concentration and get the mL/hr, with the option to account for drips already running -Light and dark themes, eight accent colors, fourteen font choices, and adjustable text size -No account, no ads, no data collection. Everything stays on your device. Formulas GIR (mg/kg/min) = Σ (% dextrose × mL/hr) ÷ (6 × weight in kg) Total fluids (mL/kg/day) = Σ mL/hr × 24 ÷ weight in kg Glucose Infusion Rate is a calculation aid for licensed healthcare professionals and does not replace clinical judgment, institutional protocols, or verification of orders.
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.
Screenshots
Verdict
The clearest difference is update cadence: GIR Calc at every 4 months against UmbiCalc's every 12 months. UmbiCalc's advantage is rating (5.0 vs 4.8) and iOS requirement (12.0 vs 26.0). On price, review sentiment, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
UmbiCalc holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
GIR Calc ships an update every 4 months, UmbiCalc every 12 months. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.
| Parameter | GIR Calc | UmbiCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 — better | 4 |
| Update frequency | Every 4 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Atlas Software Solutions LLC | Yale |
Customer experience
GIR Calc
UmbiCalc
In-app purchases
GIR Calc
No in-app purchases
UmbiCalc
No in-app purchases







