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Biorhythms and Critical Days

Biorhythms and Critical Days

Daily cycle calculator & chart

320 ratings
147 reviews
With Ads
🔧 Utilities
🌟 Lifestyle
Free
With Ads

Details

  • Released
  • Updated
  • November 11, 2019
  • August 9, 2026

Features

Developer

Sensortronic
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❓5 answered
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About

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 calculation
✓Critical day identification
✓Birth date compatibility
✓Multiple user profiles
✓Daily highlights and advice
✓Customizable themes and reminders
Show original description

What users say

Summarized from real user reviews of Biorhythms and Critical Days. Based on 320 reviews and a 4.7/5 average, it highlights the 9 positives and 6 negatives reviewers mention most about this Lifestyle app.

Positive things

  • 👍Accurate and helpful
  • 👍Easy to use
  • 👍Detailed information
  • 👍Useful for planning
  • 👍Reliable
  • 👍Interesting and informative
  • 👍Excellent design
  • 👍Comprehensive profiles
  • 👍Compatibility function

Negative things

  • 🐛Inconsistent data
  • 🐛Buggy critical days feature
  • 🐛Unclear instructions
  • 🐛Poor translations
  • 🔍Cluttered UI with ads
  • 🔍Limited customization options
See all reviews

What's New in Biorhythms and Critical Days

5.0.3

August 9, 2026

Fixed: the birth date picker was unreadable in the dark theme, showing an empty sheet instead of the date wheels. It now follows the app theme in both light and dark. Thank you to the user who reported it.

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User reviews

Most RecentHighest RatedLowest Rated

Biorhythms and critical days

This app is so right on! I find things expressed here are very accurate. I am surprised there is such a thing.

Further situations strengthen this! It seems so right on!
Good time reviewsGood time reviews

Зачастую совпадает состояние и биоритмы.

Прикольное приложение
Olga-eslOlga-esl

Функция

Сделать виджет со всеми показателями дня
Viaaa55555Viaaa55555

для понимания

использую для большей уверенности в каких то аспектах принятия решений и в принципе хорошая замена монетке (орел/решка)
benafrikaabenafrikaa

Seems more complete than my other biorhythm app

More metrics, not sure about accuracy.
Ace PaleoAce Paleo
See 142 more reviews

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User experience

🐞

Reported Bugs

4 issues

Login screen freezes

Bug

Incompatible with older devices

Bug

Incorrect biorhythm calculations

Bug

Overlapping text on mobile screens

Bug
✨

Requested Features

5 requests

Add note-taking functionality

Feature

Expand future/past date range

Feature

Improve color contrast and readability

Feature

Provide more detailed compatibility analysis

Feature

Offer paid ad-free version

Feature

FAQ

What does the Biorhythms and Critical Days app do?

This app calculates your personal biorhythms, which are believed to influence your physical, emotional, and intellectual states. It also identifies critical days, which are periods of potential instability, and assesses birth date compatibility with others.

What are the key features of this app?

Key features include calculating biorhythms from two weeks in the past to two months in the future, showing daily values and trends for each cycle, identifying critical days with advice, and assessing birth date compatibility. It also supports up to 10 user profiles with personalized themes and reminders.

How much does the Biorhythms and Critical Days app cost?

The app is free to download and use. It is supported by advertisements, which are displayed within the application.

What is the Biorhythms Theory?

The Biorhythms Theory posits that human lives are influenced by three main cycles: physical (23 days), emotional (28 days), and intellectual (33 days). These cycles begin at birth and are thought to affect daily life.

What are critical days and how does the app help with them?

Critical days are identified as times of potential flux and instability, where one might be more prone to accidents or errors. The app highlights these days and provides short, useful advice to help users be more aware and potentially avoid difficulties.