Best Conception Calculator Apps

217+ iOS apps curated and reviewed

4.7 avg rating
18 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our conception calculator list covers 217+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Compare top Conception Calculator Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Pregnancy Calculator & DiaryPregnancy Calculator & DiaryFree4.6★ (329)YesYesJul 2026
2Pregnancy Calculators ProPregnancy Calculators ProFreeYesNoMay 2026
3Овуляция Tracker - PremomОвуляция Tracker - PremomFree4.8★ (58K)NoYesJul 2026
4Pregmate Ovulation TrackerPregmate Ovulation TrackerFree4.9★ (12K)NoYesJul 2026
5Due Date Calculator: FertilityDue Date Calculator: FertilityFree4.6★ (13)NoNoMay 2026
6Ovia Cycle & Pregnancy TrackerOvia Cycle & Pregnancy TrackerFree4.8★ (89K)YesNoJul 2026
7Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (70K)NoYesJul 2026
8Glow Ovulation & Period AppGlow Ovulation & Period AppFree4.7★ (74K)YesYesJul 2026

Top Picks for Conception Calculator

Pregnancy Calculator & Diary#1

Pregnancy Calculator & Diary by Reticode

Baby Calendar, Dates, Due Date
Editor's Choice
💪 Health & Fitness
4.6(329 ratings)
FreeAdsIn-App Purchases
Pregnancy Calculator & Diary screenshot 1
Pregnancy Calculator & Diary screenshot 2
Pregnancy Calculator & Diary screenshot 3
Pregnancy Calculator & Diary screenshot 4
Pregnancy Calculator & Diary screenshot 5

Easily estimate your baby's due date and conception date. Track your pregnancy week-by-week with insights and record important details in a personal diary. Access helpful articles and tips tailored to each stage.

Pregnancy Calculators Pro#2

Pregnancy Calculators Pro by Putu Angga Risky Raharja

Maternity and Motherhood
Strong Contender
💪 Health & Fitness
0.0(0 ratings)
FreeAds
Pregnancy Calculators Pro screenshot 1
Pregnancy Calculators Pro screenshot 2
Pregnancy Calculators Pro screenshot 3
Pregnancy Calculators Pro screenshot 4
Pregnancy Calculators Pro screenshot 5
Pregnancy Calculators Pro screenshot 6

This app helps healthcare practitioners and pregnant women track pregnancy progress. It calculates gestational age, estimated due dates, and fetal weight using various formulas. It also offers helpful tips and recommendations for diet, exercise, and antenatal care.

Овуляция Tracker - Premom#3

Овуляция Tracker - Premom by Easy Healthcare Corporation

Беременность & менструация
Worth Considering
💪 Health & Fitness
4.8😊(58K ratings)
FreeIn-App Purchases
#60in Health & Fitness
Овуляция Tracker - Premom screenshot 1
Овуляция Tracker - Premom screenshot 2
Овуляция Tracker - Premom screenshot 3
Овуляция Tracker - Premom screenshot 4
Овуляция Tracker - Premom screenshot 5
Овуляция Tracker - Premom screenshot 6

This app helps women track their menstrual cycles, predict ovulation, and monitor fertility to increase chances of conception. It offers personalized insights, expert guidance, and tools like BBT charting and ovulation test scanning. Users can also track pregnancy progress and connect with a supportive community.

What We Love

  • 🚀 Accurate ovulation tracking
  • 👍 Easy to use app
  • 💡 Helpful community support
  • 🚀 Affordable ovulation tests

Room to Improve

  • 🐛 Inconsistent data tracking
  • 🐛 Frequent app crashes
  • 🐛 Inaccurate ovulation predictions

More Conception Calculator apps to explore

4
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Pregmate Ovulation Tracker
Period • Fertility Test Reader
Free

Easily track ovulation, predict fertile days, and understand your cycle. Scan test strips with your phone's camera for automatic analysis. Get personalized insights and reminders to maximize your chances of conception.

Accurate ovulation predictionsTest strip reader with auto-detectionPersonalized fertility window tracking
💪 Health & Fitness
(12K)
free with in-app purchases
5
Due Date Calculator: Fertility
Due Date Calculator: Fertility
Due Date Calculator: Fertility
For Fertility Treatments
Free

This app calculates estimated due dates for pregnancy, particularly for those undergoing fertility treatments like embryo transfer or IUI. It can also determine due dates based on ovulation or natural conception.

Calculate due dates for fertility treatmentsCalculate due dates by ovulationCalculate due dates by natural conception
🏥 Medical
(13)
free
6
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Ovia Cycle & Pregnancy Tracker
Fertility, Ovulation, & Period
Free

Track your menstrual cycle, fertility, pregnancy, postpartum recovery, and menopause with personalized insights and expert articles. This app offers tools for ovulation prediction, baby growth tracking, and symptom management.

Period & Fertility calendarPregnancy tracker with baby growthPostpartum recovery modes
🏥 Medical
(89K)
free with in-app purchases
7
Femometer Fertility Tracker
Femometer Fertility Tracker
Femometer Fertility Tracker
Ovulation & Period Calendar
Free

This app helps women track their menstrual cycles, predict ovulation, and monitor fertility. It records period dates, symptoms, and test results to provide personalized insights and increase conception rates. It also supports users throughout pregnancy with tracking and educational resources.

Period and PMS trackingOvulation and fertile window predictionBasal Body Temperature (BBT) charting
💪 Health & Fitness
(70K)
free with in-app purchases
8
Glow Ovulation & Period App
Glow Ovulation & Period App
Glow Ovulation & Period App
FDA Listed Fertility Tracker
Free

Track your menstrual cycle, ovulation, and fertility signs with personalized insights. Improve your chances of getting pregnant and better understand your body. Connect with a supportive community for advice and shared experiences.

Menstrual cycle trackingOvulation predictionFertility sign tracking
💪 Health & Fitness
(74K)
freemium
9
My Cycle ؜
My Cycle ؜
My Cycle ؜
Ovulation & Period Tracker
Free

Easily track your menstrual cycles and ovulation dates. Get timely reminders for your next period and identify your most fertile days for conception. This app also serves as a personal journal to log symptoms, mood changes, and other important events.

Period trackingOvulation predictionFertility window identification
💪 Health & Fitness
(72K)
free
10
Calculator for iPad!
Calculator for iPad!
Calculator for iPad!
Basic & Scientific Calculator
Free

This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.

Basic and scientific calculator modesOver 30 scientific operationsCustomizable appearance (iPad)
🔧 Utilities
(60K)
free
11
Gestational Age (baby's age)
Gestational Age (baby's age)
Gestational Age (baby's age)
Calculator & Prenatal Care
Free

This app helps healthcare professionals quickly calculate gestational age, estimate due dates, and track prenatal care. It offers tools for monitoring pregnancy progress, including clinical charts, fetal weight estimation, and patient history organization.

Gestational age calculation (LMP & Ultrasound)Estimated Due Date (EDD) calculationPrenatal care tracking
🏥 Medical
(184)
free with in-app purchases
12
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Large buttonsClear displayFast calculations
🔧 Utilities
(404K)
ad-supported
13
ClevCalc - Calculator
ClevCalc - Calculator
ClevCalc - Calculator
All-In-One Calculator
Free

This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.

Scientific calculatorUnit converterCurrency converter
📊 Productivity
(12K)
free with in-app purchases
14
Calculator ∞
Calculator ∞
Calculator ∞
The Best Scientific Calculator
$5.99

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

Step-by-step solution hintsMath Photos SolverHandwriting Recognition
📚 Education
(6.2K)
free with in-app purchases
15
Perfect OB Wheel
Perfect OB Wheel
Perfect OB Wheel
Obstetrics calculator
$1.99

This app is a comprehensive obstetrics calculator that provides detailed pregnancy information. It offers flexible input options and displays thorough results including estimated due dates, gestational ages, and fetal growth estimates.

Flexible input (LMP, conception, EDC, ultrasound)Fast data entry optionsDetailed pregnancy results
🏥 Medical
(3.4K)
free with in-app purchases
16
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

This app offers a customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.

60+ free cute and colorful themesExclusive dynamic and special themesScientific & Standard calculator modes
🔧 Utilities
(15K)
freemium
17
Glow Eve Period Tracker
Glow Eve Period Tracker
Glow Eve Period Tracker
Ovulation & Flow App
Free

This app helps women track their menstrual cycles, predict periods and ovulation, and log moods and symptoms. It offers insights into health trends and a supportive community for discussing sexual health.

Period and ovulation predictionMood and symptom loggingHealth data visualization
💪 Health & Fitness
(114K)
freemium
18
Calculator +
Calculator +
Calculator +
Scientific Calc Plus Fraction
Free

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

Free basic and scientific calculatorIntuitive interface with equation and result displayFraction and percent support
🔧 Utilities
(9.6K)
free with in-app purchases
19
Sci:Pro Calculator
Sci:Pro Calculator
Sci:Pro Calculator
by Jerry Montgomery
Free

This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.

Multi-mode calculator (Basic, Scientific, Programmer)Calculation historyShare results via email
🔧 Utilities
(3.6K)
free
20
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Pregnancy Due Date, Calculator
Find out your due date
Free

This app helps you track your pregnancy, calculate your due date, and understand each stage. It provides week-by-week summaries of your baby's development and your body's changes, allowing you to log notes for later review or to share with your doctor.

Complete pregnancy calculatorWeek by week pregnancy updatesRecord pregnancy notes
💪 Health & Fitness
(52)
free with in-app purchases

FAQ about Conception Calculator

What are the best conception calculator apps for iPhone?
Pregnancy Calculator & Diary tops our conception calculator apps ranking as of June 2026, with a 4.6-star average from 329 App Store ratings, and it's free to download.
Yes — 18 of the top conception calculator apps we rank are free to download, including Pregnancy Calculator & Diary and Pregnancy Calculators Pro.
Pregnancy Calculator & Diary shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 217+ conception calculator apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This app helps you estimate your baby's due date and conception date. It also provides week-by-week tracking of your pregnancy progress, a diary to record symptoms and notes, and access to articles and tips relevant to each stage of pregnancy.
You can calculate your estimated due date by entering basic personal data into the app's pregnancy calculator feature. This will provide you with an estimated due date, conception date, and your current pregnancy stage.