Best Biorhythm Calculator Simple Apps

228+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated July 2026

Looking for free biorhythm calculator simple apps? 18 of our 228+ tracked titles are free to download โ€” no subscription, no trial. The rest are premium picks worth paying for.

Compare top Biorhythm Calculator Simple Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Biorhythm Calculator SimpleBiorhythm Calculator SimpleFreeโ€”YesNoMay 2026
2Biorhythm-365Biorhythm-365Free4.7โ˜… (3.9K)YesNoJul 2026
3Calculator #Calculator #Free4.6โ˜… (36K)YesYesJul 2026
4Biorhythms and Critical DaysBiorhythms and Critical DaysFree4.7โ˜… (288)YesNoJul 2026
5#1 Age Calculator#1 Age CalculatorFree3.4โ˜… (809)NoNoJul 2026
6BMI Calculatorโ€ฐBMI Calculatorโ€ฐFree4.9โ˜… (24K)YesNoJul 2026
7Graphing Calculator Plus AIGraphing Calculator Plus AI$5.994.6โ˜… (12K)NoYesJul 2026
8ClevCalc - CalculatorClevCalc - CalculatorFree4.7โ˜… (12K)YesYesJul 2026

Top Picks for Biorhythm Calculator Simple

Biorhythm-365#2

Biorhythm-365 by Jeonghwan Kim

Check it every morning.
Strong Contender
๐ŸŒŸ Lifestyle
4.7๐Ÿ˜Š(3.9K ratings)
FreeAds
Biorhythm-365 screenshot 1
Biorhythm-365 screenshot 2
Biorhythm-365 screenshot 3
Biorhythm-365 screenshot 4
Biorhythm-365 screenshot 5

Understand your daily physical, emotional, and intellectual cycles. This app provides insights into your biorhythms, helping you make informed decisions and avoid potential risks by analyzing your daily, weekly, and monthly patterns.

What We Love

  • ๐Ÿ‘ Easy to use and understand
  • ๐Ÿš€ Accurate and informative
  • ๐Ÿ’ก Helpful for planning and self-awareness
  • ๐Ÿ” Useful for tracking personal rhythms

Room to Improve

  • ๐Ÿ”’ Limited to one user profile
  • ๐Ÿ” Lacks ability to compare multiple profiles
  • ๐Ÿ“ Difficult to change birth date once entered
Calculator ##3

Calculator # by Incpt.Mobis

Scientific Calculator
Worth Considering
๐Ÿ”ง Utilities
4.6๐Ÿ˜(36K ratings)
FreeAdsIn-App Purchases
Calculator # screenshot 1
Calculator # screenshot 2
Calculator # screenshot 3
Calculator # screenshot 4
Calculator # screenshot 5
Calculator # screenshot 6

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

What We Love

  • ๐Ÿ‘ Easy to use
  • ๐Ÿš€ Powerful functionality
  • ๐Ÿ’ก Helpful for math classes
  • โญ Great for students

Room to Improve

  • ๐Ÿ” Confusing interface after update
  • ๐Ÿ“ข Too many intrusive ads
  • ๐Ÿ’ฐ Paywall for advanced features

More Biorhythm Calculator Simple apps to explore

4
Biorhythms and Critical Days
Biorhythms and Critical Days
Biorhythms and Critical Days
Biorhythms Calculator
Free

This app calculates your personal biorhythms, critical days, and birth date compatibility. It supports multiple user profiles with customizable themes and reminders, offering daily insights and advice for physical, emotional, and intellectual cycles.

Biorhythm calculationCritical day identificationBirth date compatibility
๐ŸŒŸ Lifestyle
(288)
ad-supported
5
#1 Age Calculator
#1 Age Calculator
#1 Age Calculator
Reliable. Fast. Simple
Free

Quickly determine a person's chronological age with this straightforward calculator. It automatically computes age upon entering a birth date and can also calculate age for a past date.

Automatic chronological age calculationEnter birth date to calculate ageCalculate age for an earlier date
๐Ÿฅ Medical
(809)
free
6
BMI Calculatorโ€ฐ
BMI Calculatorโ€ฐ
BMI Calculatorโ€ฐ
Body Mass Index Calculator
Free

Easily calculate your Body Mass Index (BMI) with this straightforward application. It provides a quick way to understand your weight status based on your height and weight.

BMI calculationInput heightInput weight
๐Ÿ’ช Health & Fitness
(24K)
ad-supported
7
Graphing Calculator Plus AI
Graphing Calculator Plus AI
Graphing Calculator Plus AI
Scientific Graphing Calculator
$5.99

This app serves as a powerful scientific graphing calculator, offering advanced mathematical functions and graphing capabilities. It includes a built-in AI assistant for math queries and a comprehensive user manual. Ideal for students and professionals needing complex calculations and visualizations.

Scientific and graphing calculatorAI-powered math assistantComplex number calculations
๐Ÿ“š Education
(12K)
free with in-app purchases
8
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
๐Ÿ“Š Productivity
(12K)
free with in-app purchases
9
Calculator HD++
Calculator HD++
Calculator HD++
by smalltech sarl
Free

This application offers a high-precision calculation engine with a user-friendly interface. It allows for real-time result display as formulas are typed, supports multiple undo actions, and enables easy switching between workspaces. Users can also access persistent history, print calculations via AirPrint, and share history via email.

High precision calculation engineResults displayed while typingMultiple undo functionality
๐Ÿ”ง Utilities
(268)
ad-supported
10
Calculator 3.0
Calculator 3.0
Calculator 3.0
Calculations Simplified
Free

A free, redesigned calculator app offering a simpler, more intuitive experience across Apple devices. Features include customizable themes, advanced scientific functions, and unit conversion, all optimized for various screen sizes and interactions.

Customizable themesScientific calculatorUnit converter
๐Ÿ”ง Utilities
(3.5K)
free
11
Biorhythm Calculator - Biosync
Biorhythm Calculator - Biosync
Biorhythm Calculator - Biosync
Energy & Mood Cycle Calendar
Free

This app calculates your physical, emotional, and intellectual cycles based on your birthday. It offers daily insights, compatibility tracking with others, and an AI coach to help you optimize energy, mood, and focus.

Physical, emotional, and intellectual cycle trackingDaily biorhythm levels visualizationFuture date prediction
๐Ÿ’ช Health & Fitness
(1)
free
12
biorhythm cycles
biorhythm cycles
biorhythm cycles
by Petro Riznyk
Free

Calculate and track your daily physical, emotional, and intellectual cycles. Understand how these periodic changes affect your energy, mood, and creativity. Compare your feelings to your biorhythm values and discover potential daily patterns.

Calculate physical, emotional, and intellectual biorhythmsCompare daily biorhythm values to personal feelingsUtilize classical and improved biorhythm models
๐Ÿ’ช Health & Fitness
(220)
free with in-app purchases
13
Age Calculator App
Age Calculator App
Age Calculator App
Easy Age Calculator
Free

Calculate your exact age in various units like months, days, hours, minutes, and seconds. This app also includes a BMI calculator for additional health insights.

Calculate age in monthsCalculate age in daysCalculate age in hours
๐Ÿ”ง Utilities
(3.3K)
free with in-app purchases
14
Hours Minutes Calculator Lite
Hours Minutes Calculator Lite
Hours Minutes Calculator Lite
by Quackstro
Free

Easily calculate the difference between two times or add/subtract durations. This utility app helps manage time calculations for various purposes.

Add time durationsSubtract time durationsCalculate time differences
๐Ÿ”ง Utilities
(2.9K)
ad-supported
15
Calculator--
Calculator--
Calculator--
by Horizon Business, Inc.
Free

This is a straightforward calculator application designed for ease of use and clear readability. Users can personalize the app's appearance by choosing their preferred background and display themes.

Easy to use interfaceClear displayCustomizable background
๐Ÿ”ง Utilities
(910)
ad-supported
16
Biorhythmฮฉ
Biorhythmฮฉ
Biorhythmฮฉ
Check it every morning.
$0.99

This app calculates and displays your daily physical, emotional, intellectual, and intuitive biorhythms based on your birthday. It helps you understand your potential for stamina, judgment, and emotion, advising caution during low or dangerous periods. Analyze trends, manage multiple users, and share your biorhythm data.

Daily biorhythm calculationPhysical, emotional, intellectual, intuitive rhythmsGraph and value display
๐ŸŒŸ Lifestyle
(497)
free
17
Calculate by QxMD
Calculate by QxMD
Calculate by QxMD
Medical Calculator
Free

This clinical calculator and decision support tool offers over 200 medical calculators and tools for diagnosis, treatment, and prognosis. It adapts to your practice and provides detailed references, integrating with PubMed and Read by QxMD.

Over 200 medical calculatorsClinical decision support toolsCardiology, internal medicine, and more
๐Ÿฅ Medical
(5.1K)
free with in-app purchases
18
BMI Calculator โ€“ Weight Loss
BMI Calculator โ€“ Weight Loss
BMI Calculator โ€“ Weight Loss
Calculate your ideal weight
Free

Calculate and track your Body Mass Index (BMI) with this user-friendly app. It provides personalized health insights, ideal weight recommendations, and supports various units and classification systems. Monitor your weight journey and understand health risks.

Instant BMI calculation with animated gaugePersonalized health insightsIdeal weight recommendations
๐Ÿ’ช Health & Fitness
(27K)
free with in-app purchases
19
The Biorhythm
The Biorhythm
The Biorhythm
by Meanterm Inc.
Free

This app provides a straightforward view of original biorhythm curves for multiple individuals. It focuses solely on displaying these curves without any extraneous information, offering a clean and easy-to-understand experience.

Original biorhythm curvesEasy to read displaySupports multiple people
๐Ÿ’ช Health & Fitness
(47)
free with in-app purchases
20
Peptide Calculator: PepCalc
Peptide Calculator: PepCalc
Peptide Calculator: PepCalc
Dosage & Reconstitution Tool
Free

This tool simplifies peptide dosage and reconstitution calculations. It accurately determines injection volumes and the correct amount of water for mixing, converting results to insulin syringe units. Designed for researchers and wellness enthusiasts, it ensures precise and confident peptide administration.

Accurate dosage calculationEasy reconstitution calculationInsulin syringe unit conversion
๐Ÿฅ Medical
(9)
free

FAQ about Biorhythm Calculator Simple

Are there free biorhythm calculator simple apps for iPhone?
Yes โ€” 18 of the top biorhythm calculator simple apps we rank are free to download, including Biorhythm Calculator Simple and Biorhythm-365.
Biorhythm Calculator Simple shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 228+ biorhythm calculator simple apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.