Best Fast Pregnancy Calculator Apps

212+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated May 2026

FAST Pregnancy Calculator is the household name in fast pregnancy calculator, but it's far from the only option. We track 212+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Fast Pregnancy Calculator

FAST Pregnancy Calculator#1

FAST Pregnancy Calculator by Onur Ince

For Healthcare Professionals
Editor's Choice
🏥 Medical
4.0(4 ratings)
Free
FAST Pregnancy Calculator screenshot 1
FAST Pregnancy Calculator screenshot 2
FAST Pregnancy Calculator screenshot 3
FAST Pregnancy Calculator screenshot 4
FAST Pregnancy Calculator screenshot 5

This application helps healthcare professionals calculate a patient's gestation week based on their last menstruation period or previous ultrasound scans, providing a convenient solution for busy medical staff. By determining the gestation week, users can access information on the progress of the pregnancy, making it a helpful tool for physicians, midwives, nurses, and medical secretaries.

Pregnancy + | Tracker App#2

Pregnancy + | Tracker App by Philips Digital UK Limited

Pregnant? Join over 80m moms!
Strong Contender
🏥 Medical
4.8😊(73K ratings)
FreeAdsIn-App Purchases
#5in Medical
Pregnancy + | Tracker App screenshot 1
Pregnancy + | Tracker App screenshot 2
Pregnancy + | Tracker App screenshot 3
Pregnancy + | Tracker App screenshot 4
Pregnancy + | Tracker App screenshot 5
Pregnancy + | Tracker App screenshot 6

Download this premier pregnancy tracking app for weekly pregnancy information, expert advice, and interactive 3D models to track your baby's development. Join a global community of over 65 million expecting families today!

What We Love

  • 🚀 Excellent pregnancy tracking app
  • 👍 Informative and useful features
  • 💡 Realistic 3D baby visuals
  • 👍 Helpful weekly updates and articles

Room to Improve

  • 🐛 Inaccurate due date and week calculations
  • 🐛 Bugs with loading articles and content
  • 💰 Paywall after 14 weeks
WeMoms - Pregnancy & Baby App#3

WeMoms - Pregnancy & Baby App by Globalia

Suivi: Grossesse, Alimentation
Worth Considering
🏥 Medical
4.8😐(26K ratings)
FreeAdsIn-App Purchases
#8in Medical
WeMoms - Pregnancy & Baby App screenshot 1
WeMoms - Pregnancy & Baby App screenshot 2
WeMoms - Pregnancy & Baby App screenshot 3
WeMoms - Pregnancy & Baby App screenshot 4
WeMoms - Pregnancy & Baby App screenshot 5
WeMoms - Pregnancy & Baby App screenshot 6

Connect with other expecting mothers, access expert advice, and track your pregnancy journey with ease. Join a supportive community today for personalized pregnancy support and guidance.

What We Love

  • 🤗 Helpful community
  • 🤰 Informative for pregnancy journey
  • 💕 Supportive for new moms
  • 🎉 Engaging features

Room to Improve

  • 🤬 Bullying and harassment issues
  • 💰 Expensive subscription
  • 📺 Excessive ads

More Fast Pregnancy Calculator apps to explore

4
Pregnancy Baby Tracker - WTE
Pregnancy Baby Tracker - WTE
Pregnancy Baby Tracker - WTE
Track Development & Growth
Free

A comprehensive pregnancy tracking app for expectant mothers that offers features like due date calculation, symptom tracking, appointment reminders, kick counter, and community support. Stay informed, organized, and connected throughout your pregnancy journey.

🏥 Medical
(628)
5
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

Experience a beautifully designed calculator with large buttons and a clear display for quick and efficient calculations. Try it now to discover the simplicity and ease of use for your everyday arithmetic needs.

🔧 Utilities
(404K)
6
Gestational Age (baby's age)
Gestational Age (baby's age)
Gestational Age (baby's age)
Calculator & Prenatal Care
Free

This application provides a quick and easy way to calculate gestational age and offers valuable information such as estimated delivery dates and fetal weight. It features a practical BMI calculator and allows users to track pregnancy progress, making it an essential tool for healthcare professionals and pregnant women.

🏥 Medical
(181)
7
Gestational Age (by Medfolio)
Gestational Age (by Medfolio)
Gestational Age (by Medfolio)
Fast and Intuitive Calculation
Free

Easily calculate gestational age with a fast and intuitive mobile tool based on reputable medical guidelines. This app provides quick estimations, but always consult your healthcare provider for definitive medical advice.

🏥 Medical
(2)
8
Perfect OB Wheel
Perfect OB Wheel
Perfect OB Wheel
Obstetrics calculator
$1.99

A comprehensive obstetrics calculator app offering flexible input options, speed, thorough results, accuracy, and data persistence. Upgrade to Perfect OB Tracker for enhanced pregnancy tracking features and HIPAA compliance.

🏥 Medical
(3.4K)
9
Pregnancy App.
Pregnancy App.
Pregnancy App.
Start tracking your pregnancy!
Free

Track your pregnancy week by week with this helpful app! Stay informed about your pregnancy progress, calculate your due date, manage contractions and kicks, and monitor your weight. Download now for a free and intuitive pregnancy tracking experience. Powered by Amila.

🏥 Medical
(22K)
10
Pregnancy Due Date Quickly Calculator - Pregnant,Baby Tracker,Countdown Birth Calendar
Pregnancy Due Date Quickly Calculator - Pregnant,Baby Tracker,Countdown Birth Calendar
Pregnancy Due Date Quickly Calculator - Pregnant,Baby Tracker,Countdown Birth Calendar
by TIEN TA LEE
Free

Calculate your baby's due date and track the countdown to their arrival with this simple tool. By estimating pregnancy length from the first day of your last menstrual period, it provides an expected birth date and days remaining until your baby's arrival.

🏥 Medical
(3)
11
The Bump: Baby & Pregnancy App
The Bump: Baby & Pregnancy App
The Bump: Baby & Pregnancy App
Baby Tracker, Growth & Names
Free

This application is specifically designed to help expectant mothers track their pregnancy journey, providing valuable information on fetal development, health tips, and appointment reminders. Stay informed and organized throughout your pregnancy with this all-in-one tool.

💪 Health & Fitness
(38K)
12
Health calculator: weight, BMI
Health calculator: weight, BMI
Health calculator: weight, BMI
Weight gain / loss, pregnancy
Free

This health application allows users to calculate various health metrics, including BMI, daily calorie requirements, target heart rate zones, and more, based on their personal data. By tracking these metrics, users can manage their health and make informed decisions to achieve their wellness goals.

💪 Health & Fitness
(47)
13
ClevCalc - Calculator
ClevCalc - Calculator
ClevCalc - Calculator
All-In-One Calculator
Free

A comprehensive all-in-one calculator app with features like scientific calculator, unit converter, currency converter, percentage calculator, and more for everyday use. It provides a wide range of calculation tools from basic arithmetic to complex conversions and financial calculations. Try it out now for convenient and efficient calculations!

📊 Productivity
(12K)
14
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

A color calculator app that helps users find complementary color schemes for design projects. Simply input a base color and let the app generate harmonious color combinations for your projects. Try it now to elevate your design choices!

🔧 Utilities
(15K)
15
Calculator ∞
Calculator ∞
Calculator ∞
The Best Scientific Calculator
$5.99

A top-rated scientific calculator app on iOS devices offering advanced math functions with a user-friendly interface for users of all levels. Features include step-by-step solutions, math photo solving, and handwriting recognition. Enhance your calculations with this versatile tool.

📚 Education
(6.2K)
16
Femia - Fertility & Pregnancy
Femia - Fertility & Pregnancy
Femia - Fertility & Pregnancy
Track Period & Ovulation Cycle
Free

Femia - Fertility is a comprehensive app designed to help individuals track their menstrual cycles, ovulation, and fertility windows. With features such as cycle predictions, symptom tracking, and personalized insights, Femia empowers users to take control of their reproductive health. Download now to optimize your chances of conception or birth control planning.

💪 Health & Fitness
(5.5K)
17
Pregnancy Tracker 3D by Sprout
Pregnancy Tracker 3D by Sprout
Pregnancy Tracker 3D by Sprout
Track Baby Growth Week-By-Week
Free

Monitor every aspect of your pregnancy with this all-in-one tracker app. From contraction timers to kick counters, stay informed and organized on your journey to motherhood. Try it out now!

🏥 Medical
(24K)
18
Shohay Pregnancy
Shohay Pregnancy
Shohay Pregnancy
Evidence-based pregnancy app
Free

An ultimate pregnancy app featuring evidence-based content, tools for tracking progress, managing symptoms, and staying healthy during pregnancy. Receive week-by-week guidance, lifestyle advice, and exclusive video guides from renowned doctors. Download now for a comprehensive pregnancy experience.

💪 Health & Fitness
(1.2K)
19
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

A scientific calculator app designed for engineers and students, offering features like formula display, quick editing, memory functions, and various calculation modes. Improve accuracy and efficiency with easy formula navigation and editing tools. Explore advanced functions for different number systems and mathematical operations.

🔧 Utilities
(1.9K)
20
Calculator Pro Lite
Calculator Pro Lite
Calculator Pro Lite
Best Calculator
Free

A versatile and customizable calculator app offering basic and scientific functions, memory features, history tape, and various layout options. Users can personalize their color themes, access scientific functions, and easily perform complex calculations, all with ad-supported convenience. Explore the app now for a powerful and user-friendly calculation experience!

🔧 Utilities
(3K)