Comparison

Coma scales vs Obstetrics Calculator

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

Head to head
About

Coma scales

This medical app offers essential tools for assessing patient consciousness. It includes the Glasgow Coma Scale for head injuries, the FOUR Score for intubated patients, and the Disability Rating Scale for predicting recovery.

Highlights
  • Glasgow Coma Scale (Adult & Pediatric)
  • FOUR Score
  • Disability Rating Scale
  • Apple Watch companion app
  • Fast consciousness assessment
Features
Read full description

This application provides several commonly used scales for assessment of patients with consciousness troubles: - Adult & Pediatric Glasgow Coma Scale, which is the most frequently used score to evaluate the conscious state, particularly after a traumatic brain injury - FOUR Score which can be used for intubated patients - Disability Rating Scale which is used to predict the degree of disability depending on clinical recovery *** Apple Watch app included *** The included Apple Watch app allows a very easy & very fast determination of the Glasgow Coma Scale and FOUR Score!

About

Obstetrics Calculator

This medical app provides a comprehensive suite of tools for calculating gestational age, estimated due dates, and various risk assessments related to pregnancy and women's health. It includes calculators for maternity leave, cervical assessments, and cancer risk estimations, designed for healthcare professionals.

Highlights
  • Gestational age and due date calculation
  • Multiple calculation methods (LMP, ultrasound, IVF)
  • Maternity leave timeframe estimation
  • Bishop Score and TOLAC probability
  • Cancer risk estimations (Breast, Cervical, Ovarian)
  • Follow-up after colposcopy
Features
Read full description

Obstetric Calculator will help you determine gestational age in weeks and days as well as estimated due date using last menstrual period, ultrasound report, ovulation/IVF and other methods. This set of tools ans scales contains: - Estimated Due Date & Gestational Age by First Day of Last Menstrual Period - Estimated Due Date & Gestational Age by Ultrasound Report - Estimated Due Date & Gestational Age by Conception Date - Estimated Due Date & Gestational Age by Quickening (= Fetal Movements) - Estimated Due Date & Gestational Age from Given Date - Timeframe for Maternity Leave - Gestational Age & last menstrual period from Estimated Due Date - Gestational Age by Crown-Rump Length - Gestational Age by Fetal Biometry - Estimated Fetal Weight by Mother's Biometry - Bishop Score (Quick Cervix Assessment) - Probability of Successful Vaginal Birth after Cesarean Section (or Trial of Labor) - Breast Cancer Risk Estimation (Gail Model) - Cervical Cancer Risk Estimation (ASCCP 2019 Guidelines) - Ovarian Cancer Risk (O-RADS, ADNEX, ROMA) - Follow-Up after Colposcopy/Treatment of CIN Each tool is provided with instructions ("i" in the upper right corner). This app was designed for educational use by health care providers in the field of Obstetrics & Gynecology.

Screenshots

Coma scales4 screens
Obstetrics Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Obstetrics Calculator at 55% against Coma scales's 0%. Obstetrics Calculator also leads on price (Free vs $0.99) and update cadence (every 2 months vs every 10 months). Coma scales's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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

Obstetrics Calculator is free to download; Coma scales costs $0.99 up front. Obstetrics Calculator sells 2 in-app purchases, starting at $1.99 per month. Coma scales asks for nothing beyond the download.

UpkeepUpdate frequency

Coma scales ships an update every 10 months, Obstetrics Calculator every 2 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
Coma scales versus Obstetrics Calculator: the parameters behind the verdict, then further details
ParameterComa scalesObstetrics Calculator
Price$0.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews54.5% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size37 MB90 MB
Age rating17+12+
DeveloperMikael CohenAlexander Snegirev

Customer experience

Coma scales

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Obstetrics Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive54.5%
Neutral36.4%
Negative9.1%

In-app purchases

None

Coma scales

No in-app purchases

2 purchases

Obstetrics Calculator

Subscriptions1
  • ObCalc Pro$1.991 Month
One-time1
  • Disable Ads$10.99

Questions

Is Coma scales free?
Coma scales costs $0.99, with no in-app purchases.
Is Obstetrics Calculator free?
Obstetrics Calculator is free to download, with in-app purchases available.
Do Coma scales or Obstetrics Calculator have ads?
Obstetrics Calculator shows ads; Coma scales does not.
Which is updated more often, Coma scales or Obstetrics Calculator?
Coma scales ships an update every 10 months, and Obstetrics Calculator every 2 months. Most recently, Coma scales was updated on October 29, 2026 and Obstetrics Calculator on October 30, 2026.

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