Comparison

MedCalX vs BiliBuddy

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

Head to head
About

MedCalX

This medical calculator app provides healthcare professionals with a comprehensive tool for complex medical formulas, scores, and classifications. It offers an extensive library of over 300 medical calculations, patient management features, and sharing capabilities.

Highlights
  • Extensive medical formula library (300+)
  • Patient management and data saving
  • Customizable workflows
  • Multiple result sharing options
  • Detailed information and references
  • US and SI unit support
  • iCloud synchronization for favorites
Features
Read full description

MedCalX is a tool that enables medical professionals to easily use complicated medical formulas, scores and classifications. 25 years of experience developing this tool for mobile platforms makes MedCalX the leading medical calculator, with an unparalleled user interface and powerful features. MedCalX is free to download and use, but you have access only to a subset of formulas. In-app purchase lets you unlock the whole range of formulas that MedCalX has to offer; more than 300 in total! Main features: • A very large selection (more than 300) of relevant formulas, scores, scales and classifications. • Workflows: create your own series of formulas, text, links and images • Many different ways to share results (and data): copy to clipboard, email report, print via AirPrint, save to patient database... • Exclusive patient management feature for saving and accessing results, as well as images and notes. Results can be exported to the desktop as CSV files and shared between your and your colleaugues iOS devices. • Detailed information and bibliographic references for each formula. • Support for US and SI units, with easy switching from the keypad. • Search for entries by name, keywords and categories. • Takes advantage of iOS 9 – you can now use Spotlight to search for formulas • Customizable list of favorite equations, synchronized via iCloud. • Ability to add notes to individual formulas. • Full support for external (hardware) keyboards Formulas, scores and classifications include, amongst others: • Anesthesiology (ASA, Bromage, Charlson, Cormack, Dermatome, Goldman) • Cardiology (CC/AHA ASCVD, CHADS, EuroSCORE, GRACE, HAS-BLED, Killip, PROCAM, QT-c, TIMI) • Electrolytes (Corrected Ca, Corrected Na, FENa, Osmolal gap) • Evidence-Based Medicine (NNT, Odds, Sample size, Two-way table) • ICU (ABCD2+3, APACHE, CAM-ICU, GCS, Parkland, SAPS, many PE-criteria and trauma scores) • Neurology (AMTS, Aphasia, Canadian rules, NIHSS, WFNS) • Obstetrics (APGAR, Bishop, Malinas, Pregnancy Wheel) • Pediatrics (Age, Target Height, Centor and McIsaac, PRAM, WETFAG) • Respiratory (BODE, Epworth, GOLD, SMART-COP, Spirometry, Thoracoscore) • Renal (Cockcroft, MDRD and more Creatinine/GFR calculators, KDIGO and RIFLE) • ABG analyzer worth $5 in other apps • Complete infusion management tool, great for ICU nurses • Complicated scores (CAM-ICU, CDAI, APACHE, POSSUM, SAPS, Euroscore) If you like MedCalX, we’d appreciate it if you took the time to give us a nice review.

About

BiliBuddy

This app helps healthcare professionals determine the need for phototherapy or exchange therapy in newborns based on their age, bilirubin levels, and risk factors. It utilizes the latest American Academy of Pediatrics guidelines and displays results on interactive nomograms. The app also tracks infant data and provides links to relevant research.

Highlights
  • Calculates phototherapy threshold
  • Displays on nomograms
  • Calculates infant age
  • Views risk factors
  • Supports US and SI units
  • Tracks bilirubin measures
Features
Read full description

BiliBuddy supports clinicians assessing neonatal jaundice in infants born at 35 weeks of gestation or later. Use Quick Check to compare a total serum bilirubin reading with American Academy of Pediatrics (AAP) 2022 phototherapy, escalation-of-care, and exchange-transfusion thresholds. Enter age in hours, gestation, and additional neurotoxicity risk factors. View the result and threshold charts in mg/dL or µmol/L. Track infants locally to review reading history, plot trends, and calculate the rate of rise. A date-and-time calculator helps determine age at measurement. Share a text result summary using the device's share sheet. The 2022 guideline is selected by default. An optional legacy AAP 2004 pathway is available in Settings, with its supported chart range clearly identified. Reference material and links to source guidelines are included. Clinical entries are stored on the device. Usage analytics is optional and off by default. Advertising and crash diagnostics use third-party services described in the in-app Privacy Notice. An in-app purchase removes ads, and Restore Purchases restores an eligible prior purchase. For clinician use. BiliBuddy does not replace clinical judgment, clinical assessment, or consultation of the source guideline. It is not an electronic health record. Do not use outside the supported age and gestation ranges.

Screenshots

MedCalX4 screens
BiliBuddy1 screens

Verdict

The call

The clearest difference is rating: BiliBuddy at 4.9 against MedCalX's 3.8. BiliBuddy also leads on review sentiment (85% vs 46%) and update cadence (every 4 weeks vs every 5 months). MedCalX's advantage is ads (none vs shown). On price, in-app purchases, monetization model 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

Both are free to download. MedCalX sells 1 one-off in-app purchase and BiliBuddy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BiliBuddy holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: BiliBuddy has 258 ratings behind it against 31, so its average is the more settled of the two. Written reviews point the same way: 46% of MedCalX's written reviews are positive against 85% of BiliBuddy's.

UpkeepUpdate frequency

MedCalX ships an update every 5 months, BiliBuddy every 4 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
MedCalX versus BiliBuddy: the parameters behind the verdict, then further details
ParameterMedCalXBiliBuddy
PriceFreeFree
Rating3.8 (31 ratings)4.9 (258 ratings) — better
Positive reviews45.8% of reviews84.6% of reviews — better
Number of ratings31258 — better
Update frequencyEvery 5 monthsEvery 4 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size45 MB30 MB
Age rating17+17+
DeveloperOssus GmbHCovenant Data Systems, LLC

Customer experience

MedCalX

All ratings30 ratings
Positive66.7%
Neutral6.7%
Negative26.7%
Written reviews118 reviews
Positive45.8%
Neutral7.6%
Negative46.6%

BiliBuddy

All ratings258 ratings
Positive98.1%
Neutral0.4%
Negative1.6%
Written reviews13 reviews
Positive84.6%
Neutral0.0%
Negative15.4%

User reviews

MedCalX

From 31 App Store ratings

What we love

  • 👍 Intuitive and user-friendly interface
  • 📱 Comprehensive collection of medical formulas and scores
  • 🚀 Fast calculations and quick access
  • 📚 Includes PubMed links and background information
  • 🌍 Multi-language support

Room to improve

  • 💰 Paywalls for previously free calculators
  • 🔄 Forced paid upgrades for existing users
  • ❌ Missing many important medical scores
  • ⏱️ Infrequent updates and maintenance
  • 🐛 Frequent crashes and stability issues

BiliBuddy

From 258 App Store ratings

What we love

  • 👍 Useful and easy to use
  • 📈 Graphs and trends Bili levels
  • ⏱️ Figures out baby's age in hours
  • ✅ Spot on accuracy
  • 📰 Updates Bili guidelines

Room to improve

  • intrusive video/audio ads
  • ❌ No display of risk zones
  • 💥 App keeps crashing
  • 🖱️ UI not the best
  • 🔗 Link to further information doesn't work

Bugs and requests

MedCalX

Reported bugs

10 issues
  • App crashes on startup
  • App crashes when taking patient photos
  • App fails to open or becomes unresponsive
  • Unable to restore previous purchases
  • Doximity unlock feature not working
Show 5 more
  • Spotlight search functionality broken
  • NIH scale interface poorly designed
  • Parameter value limits prevent calculations for severe patients
  • Data migration issues between app versions
  • Preferences not carried over during upgrades

Requested features

17 requests
  • SCORE2 and other modern cardiovascular risk scores
  • TRiP(cast) score
  • Valve disease calculations
  • Pediatric medication dosing calculators
  • Electrolyte and fluid replacement calculations
Show 12 more
  • ICU-specific calculations and AHI calculation
  • GUPTA, AWOL, and CAM traditional scores
  • Dermatology scales and classifications
  • RESP and PRESET scores
  • Psychological assessment scores (depression, alcoholism ratings)
  • Gail model and cancer risk calculations
  • Pediatric weight percentiles by age
  • Custom formula creation
  • Unit conversion tool
  • Personal formula addition feature
  • Forrester classification
  • MMSE and other copyrighted scales

BiliBuddy

Reported bugs

4 issues
  • Video/audio ads won't shut off
  • App crashes
  • Text boxes sometimes don't respond
  • Link to further information doesn't work

Requested features

3 requests
  • Add or manage hours of phototherapy treatment
  • Make scrolling between risk levels more obvious (e.g., more dots)
  • Display low, intermediate, and high intermediate risk zones

In-app purchases

1 purchases

MedCalX

One-time1
  • MedCalX Unlock$4.99
1 purchases

BiliBuddy

One-time1
  • Remove Ads$6.99

Questions

Is MedCalX free?
MedCalX is free to download, with in-app purchases available.
Is BiliBuddy free?
BiliBuddy is free to download, with in-app purchases available.
Which has better reviews, MedCalX or BiliBuddy?
BiliBuddy is rated higher. MedCalX averages 3.8 out of 5 from 31 ratings, while BiliBuddy averages 4.9 from 258 ratings.
Do MedCalX or BiliBuddy have ads?
BiliBuddy shows ads; MedCalX does not.
Which is updated more often, MedCalX or BiliBuddy?
MedCalX ships an update every 5 months, and BiliBuddy every 4 weeks. Most recently, MedCalX was updated on November 6, 2026 and BiliBuddy on November 2, 2026.

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