# BiliCalc vs The Difficult Airway App

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 (#59 vs unranked) and iOS requirement (13.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

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.

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

## The numbers

| Metric | BiliCalc | The Difficult Airway App |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | — | **[4.1 (22 ratings)](https://appshunter.io/ios/app/the-difficult-airway-app/id433176317/reviews)** |
| Number of ratings | — | **22** |
| Positive reviews | **65.5% of reviews** | 31.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#59** |
| Size | 7 MB | 62 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Jacob Beniflah, MD](https://appshunter.io/developer/432749902) | [Airway Management Education Center](https://appshunter.io/developer/433176320) |

## What reviewers say

### BiliCalc

[App page](https://appshunter.io/ios/app/bilicalc/id432749899)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Simple design
- 👍 User-friendly interface
- ⏱️ Time saver
- 👍 Great for quick calculations

**What reviewers complain about**

- ❌ Outdated guidelines (2004)
- ❌ Not updated for 2022 guidelines
- ❌ Inaccurate plotting (historical)
- ❌ Potentially dangerous inaccuracies
- ❌ Appears abandoned

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/the-difficult-airway-app/id433176317)

**Currently charting:** #59 Top Paid · Medical (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*