Comparison

BiliCalc vs The Difficult Airway App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BiliCalc

This app calculates phototherapy thresholds for newborns based on age, bilirubin levels, and neurotoxicity risk, referencing AAP guidelines. It displays values on a phototherapy nomogram and identifies the patient's risk zone using the Bhutani Nomogram.

Highlights
  • Calculates phototherapy threshold for newborns
  • Displays values on phototherapy nomogram
  • Identifies patient risk zone using Bhutani Nomogram
  • Calculates age from birth and lab times
  • Direct links to reference articles and risk factors
  • Supports US and SI units
Features
Read full description

BiliCalc is a neonatal bilirubin calculator and clinical reference for healthcare professionals caring for newborn infants born at 35 or more weeks of gestation. Calculations are based on the 2022 American Academy of Pediatrics (AAP) Clinical Practice Guideline for the management of hyperbilirubinemia in newborn infants 35 or more weeks of gestation. Enter the infant's postnatal age, gestational age at birth, bilirubin value, measurement type, applicable neurotoxicity risk factors, and phototherapy status to view: • Patient-specific phototherapy, escalation-of-care, and exchange-transfusion thresholds • A graph displaying the bilirubin value and applicable treatment thresholds • Guideline-based treatment recommendations • Post-discharge follow-up guidance, when applicable No internet connection is required for calculations. BiliCalc performs calculations locally on the device and can be used without Wi-Fi or cellular data. BiliCalc is designed for quick clinical reference and does not measure bilirubin. Bilirubin values and other clinical information must be obtained independently and entered by the healthcare professional. Clinical references and links to source material are available within the app. BiliCalc is intended to support, not replace, professional clinical judgment. It is independently developed and is not affiliated with, sponsored by, or endorsed by the American Academy of Pediatrics. The app itself is available in English, Spanish and Portuguese, including its interface, results, charts and clinical guidance. BiliCalc automatically uses your preferred supported device language. You can also choose a language in Info. Regional language variants are recognized, and number formatting follows your device region.

About

The Difficult Airway App

This medical app assists clinicians in managing emergency airways by providing rapid drug selection and dosing for RSI. It offers decision-making support with algorithms and mnemonics for difficult airways, along with educational resources.

Highlights
  • Adult and pediatric drug dosing for RSI
  • Obesity and hemodynamic adjustments
  • Broselow-Luten color system integration
  • Difficult airway algorithms and predictors
  • Step-by-step RSI guidance
  • Customizable drug formulary
  • Airway anatomy illustrations
Features
Currently charting
Read full description

The Difficult Airway App (v.3.3) The Difficult Airway App™ is an essential tool for clinicians who manage emergency airways in any setting: the ED, ICU, in-patient unit or the many EMS practice environments. THE RIGHT DRUGS, THE RIGHT DOSES, THE RIGHT WAY! This app rapidly and easily selects the right drugs for RSI, automatically adjusting for obesity and hemodynamics. Pediatric dosing and equipment selection is a snap using the Broselow-Luten color system or the child's estimated weight. Stay out of trouble! The Difficult Airway App™ guides the user quickly and easily through important algorithms, predictors of the difficult airway, and the step-by-step approach to RSI taught in The Difficult Airway Course: Emergency™. The Difficult Airway App™ features: EASY, YET SOPHISTICATED ADULT AND PEDIATRIC DRUG DOSING • For adult dosing, a few simple clicks bring you to recommended doses that incorporate patient weight, body habitus and hemodynamics. • The pediatric drug dosing function incorporates the color-coded system created by James Broselow, MD and Robert C. Luten, MD for rapid, safe management of pediatric airway cases. • The option to customize your formulary means that only the drugs you use will appear in the recommendations. DECISION-MAKING SUPPORT • Straight-forward algorithms allow you to quickly determine the best approach to your patient’s airway. • Easy mnemonics walk you through predictors of a difficult airway, including difficult laryngoscopy (LEMON), difficult BMV (ROMAN), difficult extraglottic device use (RODS) and difficult cricothyrotomy (SMART). • Pearls of wisdom, based on evidence and expert opinion, are offered throughout. RAPID SEQUENCE INTUBATION • The 7 – Ps of RSI: a step-by-step guide for adult and pediatric patients. • Adult and pediatric RSI drug dosing. EDUCATIONAL RESOURCES • Richly detailed illustrations of the airway anatomy. • Links to information about The Difficult Airway Courses™. Created by Ron M. Walls, MD, Michael F. Murphy, MD and Robert C. Luten, MD. With significant updates by Calvin A. Brown III, MD.

Screenshots

BiliCalc4 screens
The Difficult Airway App4 screens

Verdict

The call

The clearest difference is review sentiment: BiliCalc at 66% against The Difficult Airway App's 31%. BiliCalc also leads on update cadence (every 2 months vs every 10 months) and price ($1.99 vs $4.99). The Difficult Airway App's advantage is chart position (#46 vs unranked) and iOS requirement (13.0 vs 16.0). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

BiliCalc costs $1.99 and The Difficult Airway App $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BiliCalc ships an update every 2 months, The Difficult Airway App every 10 months. Both last shipped on October 24, 2026.

Scorecard6 real differences · 5 level
BiliCalc versus The Difficult Airway App: the parameters behind the verdict, then further details
ParameterBiliCalcThe Difficult Airway App
Price$1.99 — better$4.99
Rating—4.1 (22 ratings) — better
Positive reviews65.5% of reviews — better31.3% of reviews
Number of ratings—22 — better
Update frequencyEvery 2 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#46 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size7 MB62 MB
Age rating17+4+
DeveloperJacob Beniflah, MDAirway Management Education Center

Customer experience

BiliCalc

Written reviews58 reviews
Positive65.5%
Neutral13.8%
Negative20.7%

The Difficult Airway App

All ratings22 ratings
Positive77.3%
Neutral9.1%
Negative13.6%
Written reviews16 reviews
Positive31.3%
Neutral31.3%
Negative37.5%

Bugs and requests

BiliCalc

Reported bugs

5 issues
  • Intermittently inaccurate plotting of bili values
  • Plots bili at lower than value entered
  • Graph is backwards (historical)
  • Instability misspelled (historical)
  • Graph errors when on phone call (historical)

Requested features

5 requests
  • Update to 2022 guidelines
  • Include transcutaneous measurements
  • Show hours since birth on graph
  • Plot more than one point on graph
  • Add dark mode option

The Difficult Airway App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

BiliCalc

No in-app purchases

None

The Difficult Airway App

No in-app purchases

Questions

Is BiliCalc free?
BiliCalc costs $1.99, with no in-app purchases.
Is The Difficult Airway App free?
The Difficult Airway App costs $4.99, with no in-app purchases.
Do BiliCalc or The Difficult Airway App have ads?
Neither BiliCalc nor The Difficult Airway App shows ads.
Which is updated more often, BiliCalc or The Difficult Airway App?
BiliCalc ships an update every 2 months, and The Difficult Airway App every 10 months. Most recently, BiliCalc was updated on October 24, 2026 and The Difficult Airway App on October 24, 2026.

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