Obstetrics Calculator vs GestAge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
GestAge
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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
Verdict
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
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.
Obstetrics Calculator ships an update every 2 months, GestAge weekly. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.
| Parameter | Obstetrics Calculator | GestAge |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 54.5% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 90 MB | 9 MB |
| Age rating | 12+ | 17+ |
| Developer | Alexander Snegirev | GABRIEL ENRIQUE CASTILLO MARTIN DEL CAMPO |
In-app purchases
Obstetrics Calculator
- ObCalc Pro$1.991 Month
- Disable Ads$10.99
GestAge
- Gestage$29.99
Questions
Is Obstetrics Calculator free?
Is GestAge free?
Do Obstetrics Calculator or GestAge have ads?
Which is updated more often, Obstetrics Calculator or GestAge?
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