Nicutools
Neonatal clinical calculators
$7.99 · Designed for iPad. Not verified for macOS.
Twenty-five evidence-based clinical calculators for neonatal intensive care, designed for the bedside. Built by an Australian neonatal clinician for fellow NICU professionals.
CALCULATORS INCLUDED
Respiratory & Physiology
• Alveolar-arterial O₂ gradient
• Altitude physiology
• Base excess
• Low-flow O₂ delivery
• Mean airway pressure
• Nitric oxide delivery
• Oxygenation index (with ECMO threshold alert)
Fluids & Nutrition
• Dextrose infusion preparation
• Glucose infusion rate (GIR)
• Fluid & feeds rate
Survival & Outcomes
• Extreme preterm outcomes
• Diaphragmatic hernia survival probability
• ECMO risk in diaphragmatic hernia
Resuscitation & Procedures
• Apgar clock & CPR metronome
• ET tubes & umbilical catheters
• Partial exchange transfusion (polycythaemia)
• Percutaneous long lines
Gestation Calculators
• Corrected gestational age
• Gestational age at birth
Converters & Measurements
• Weight converter
• Bilirubin units (μmol/L ↔ mg/dL)
• Glucose units (mmol/L ↔ mg/dL)
• Pressure units (kPa ↔ mmHg)
• Body surface area
• Percentage weight loss
DESIGNED FOR THE BEDSIDE
• Works offline — no data leaves your device, ever
• iPad-adaptive layout shows sidebar + calculator side by side
• System-wide search via Spotlight
• Haptic feedback on clinical warnings
• Dark mode and pressure-unit preferences sync across all
calculators
• In-app Algorithm and References dialogs explain the maths and cite
primary sources where applicable
CLINICAL DECISION SUPPORT ONLY
Nicutools is a reference tool for qualified healthcare professionals. All calculations must be independently verified against your local protocols and your patient's circumstances. Not a substitute for clinical judgement.
The free web version is at nicutools.org. This iOS app adds native iOS conveniences — Spotlight search, iPad split-view, haptics, true offline support, and no analytics.
Ratings & Reviews
Added an option to rate Nicutools from Settings. You may occasionally be asked for a review after finishing a calculation.
The developer, Michael Hewson, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Hewson
- Size
- 2.9 MB
- Category
- Medical
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
- English
- Age Classification
16+
- 16+
- Frequent
Medical Treatment Information
- Copyright
- © 2026 Michael Hewson
