Comparison

Obstetrics Calculator vs GestAge

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

Head to head
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.

About

GestAge

Features
Read full description

GestAge es una herramienta clínica diseñada para profesionales de la salud que necesitan calcular, consultar y organizar información obstétrica de forma rápida y práctica. Con GestAge puedes calcular la edad gestacional por fecha de última menstruación o por ultrasonido, estimar la fecha probable de parto y llevar seguimiento de pacientes desde una interfaz clara, bilingüe y enfocada en el uso clínico. La app permite guardar pacientes, organizar embarazos activos, registrar parto, cesárea o pérdida gestacional, y conservar el historial de múltiples gestaciones por paciente. GestAge también permite exportar e importar respaldos locales en formato JSON, facilitando el cambio de dispositivo y la compatibilidad con GestAge Desktop, sin depender de servidores externos. Funciones principales: • Cálculo de edad gestacional por FUM • Cálculo por ultrasonido • Estimación de fecha probable de parto • Seguimiento de embarazos activos • Registro de parto, cesárea o pérdida gestacional • Historial de múltiples gestaciones por paciente • Organización automática de pacientes por edad gestacional • Exportación e importación de respaldos JSON • Interfaz en español e inglés • Compatibilidad con flujo de trabajo local mediante GestAge Desktop GestAge Pro desbloquea funciones avanzadas como pacientes ilimitados, exportar/importar respaldos, historial de múltiples gestaciones, registro de resultados obstétricos y flujo compatible con escritorio. Privacidad: La información clínica se almacena localmente en el dispositivo. GestAge no envía nombres de pacientes, expedientes, fechas clínicas ni respaldos JSON a servidores propios. Los respaldos exportados son responsabilidad del usuario y deben guardarse de forma segura. Aviso médico: GestAge es una herramienta de apoyo para profesionales de la salud. No sustituye el juicio clínico, la valoración médica individual, las guías institucionales ni la atención médica profesional. Subscription Information: GestAge Pro offers auto-renewable subscription options. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Privacy Policy: https://politicadeprivacidadgestage.netlify.app/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Obstetrics Calculator4 screens
GestAge4 screens

Verdict

The call

The clearest difference is ads: GestAge at none against Obstetrics Calculator's shown. GestAge also leads on update cadence (weekly vs every 2 months). Obstetrics Calculator's advantage is iOS requirement (13.0 vs 15.0). On price, 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

Both are free to download. Obstetrics Calculator sells 2 in-app purchases, starting at $1.99 per month and GestAge sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Obstetrics Calculator ships an update every 2 months, GestAge weekly. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
Obstetrics Calculator versus GestAge: the parameters behind the verdict, then further details
ParameterObstetrics CalculatorGestAge
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews54.5% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size90 MB9 MB
Age rating12+17+
DeveloperAlexander SnegirevGABRIEL ENRIQUE CASTILLO MARTIN DEL CAMPO

In-app purchases

2 purchases

Obstetrics Calculator

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

GestAge

One-time1
  • Gestage$29.99

Questions

Is Obstetrics Calculator free?
Obstetrics Calculator is free to download, with in-app purchases available.
Is GestAge free?
GestAge is free to download, with in-app purchases available.
Do Obstetrics Calculator or GestAge have ads?
Obstetrics Calculator shows ads; GestAge does not.
Which is updated more often, Obstetrics Calculator or GestAge?
Obstetrics Calculator ships an update every 2 months, and GestAge weekly. Most recently, Obstetrics Calculator was updated on October 25, 2026 and GestAge on October 10, 2026.

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