Comparison

OB Calc (cloud) vs Gestational Age Calculator App

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

Head to head
About

OB Calc (cloud)

This medical app helps obstetricians efficiently calculate key patient test date windows. It offers multiple calculation methods and allows for saving patient data and generating PDF reports. A free trial is available, followed by a subscription for full access.

Highlights
  • LMP, EDC, Ultrasound, CRL, and IVF calculations
  • Customizable test date ranges
  • Cross-device data syncing
  • PDF report generation
  • Save individual patient data
Features
Read full description

While similar to a pregnancy wheel, OB Calc (cloud) is specifically designed by an obstetrician, for obstetricians. Finally obstetricians have an efficient and simple method to calculate the important test date windows for patients. CALCULATION METHODS • Last Menstrual Period (LMP) • Expected Delivery Date (EDC) • Sonogram Date and Fetal Age (Sonogram) • Crown Rump Length (CRL) • In Vitro Fertilization (IVF) Try the app for free for 7 days. A low monthly autorenewable subscription gives users access to premium features such as all calculation methods and saving of individual patient data. You can reach the developer directly at support@inpocketsolutions.com FEATURES • LMP, EDC, Ultrasound, CRL and IVF Method Calculations • Customize up to 15 tests, with date ranges • Data synced across multiple devices • Generate a PDF file • Save individual patient data CRL data reference : https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.1002/uog.7654 Terms & Conditions: https://inpocketsolutions.com/terms ** Disclaimer Remember to test out the app on your specific device to ensure calculations are verified to your expectation.

About

Gestational Age Calculator App

Read full description

Gestational Age Calculator - Pregnancy Tracking Simplified **Your trusted companion for accurate pregnancy tracking and fetal development insights** The Gestational Age Calculator provides expectant parents and healthcare professionals with a precise, easy-to-use tool for monitoring pregnancy progress. Developed with medical guidelines in mind, our application offers multiple calculation methodologies to accommodate various pregnancy scenarios and provide personalized information throughout your 40-week journey. ## Comprehensive Calculation Methods Our calculator supports three scientifically-based calculation methods: • **Last Menstrual Period (LMP)**: The traditional Naegele's rule calculation with customizable cycle length adjustment for women with regular or irregular cycles • **Ultrasound Dating**: Input ultrasound measurements to calculate gestational age based on clinical assessments • **Conception Date**: For those who know their conception date, calculate precise timing for your pregnancy milestones ## Detailed Pregnancy Information Each calculation provides vital information at your fingertips: • Estimated Due Date (EDD) presented with day-of-week and full date format • Current gestational age displayed in weeks and days • Trimester identification with week ranges for context • Week-by-week fetal development descriptions that explain your baby's growth milestones ## Thoughtfully Designed Experience We've created an app that puts your needs first: • Clean, intuitive interface with a calming color palette • Responsive design that works across all device sizes • Offline functionality - no internet connection required • Input validation to ensure accurate calculations • Helpful notifications guide you through the calculation process • Professional medical disclaimer to encourage appropriate healthcare consultation ## Perfect For: • First-time parents wanting to understand pregnancy milestones • Experienced parents tracking subsequent pregnancies • Healthcare providers needing quick reference calculations • Family members wanting to follow the pregnancy journey • Anyone interested in learning about fetal development stages The Gestational Age Calculator is designed as an informational tool to complement professional medical care, not replace it. All calculations follow established obstetric guidelines, but individual pregnancies may vary. Always consult with your healthcare provider for personalized medical advice. Download now and gain peace of mind with accurate, accessible pregnancy tracking throughout your journey to parenthood.

Screenshots

OB Calc (cloud)4 screens
Gestational Age Calculator App4 screens

Verdict

The call

The clearest difference is in-app purchases: Gestational Age Calculator App at none against OB Calc (cloud)'s 2. Gestational Age Calculator App also leads on iOS requirement (14.0 vs 18.0). OB Calc (cloud)'s advantage is ads (none vs shown). On price, update cadence 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. OB Calc (cloud) sells 2 in-app purchases, starting at $2.99 per month. Gestational Age Calculator App asks for nothing beyond the download.

UpkeepUpdate frequency

OB Calc (cloud) ships an update every 3 months, Gestational Age Calculator App every 2 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
OB Calc (cloud) versus Gestational Age Calculator App: the parameters behind the verdict, then further details
ParameterOB Calc (cloud)Gestational Age Calculator App
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.014.0 — better
Further details — not scored
Size14 MB5 MB
Age rating4+12+
DeveloperGlen BothaAhmad Al Hariri

In-app purchases

2 purchases

OB Calc (cloud)

Subscriptions2
  • Monthly Subscription$2.991 Month
  • Premium (Annual)$29.991 Year
None

Gestational Age Calculator App

No in-app purchases

Questions

Is OB Calc (cloud) free?
OB Calc (cloud) is free to download, with in-app purchases available.
Is Gestational Age Calculator App free?
Gestational Age Calculator App is free to download, with no in-app purchases.
Do OB Calc (cloud) or Gestational Age Calculator App have ads?
Gestational Age Calculator App shows ads; OB Calc (cloud) does not.
Which is updated more often, OB Calc (cloud) or Gestational Age Calculator App?
OB Calc (cloud) ships an update every 3 months, and Gestational Age Calculator App every 2 months. Most recently, OB Calc (cloud) was updated on November 7, 2026 and Gestational Age Calculator App on October 30, 2026.

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