# biorhythm cycles

> Health & Fitness

Canonical page: [https://chrome-stats.com/d/id879917580](https://chrome-stats.com/d/id879917580)

## Overview

- **ID:** `id879917580`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Petro Riznyk
- **Category:** Health & Fitness
- **Rating:** 4.30 / 5 (223 ratings)
- **Version:** 2.1.0
- **Last updated:** 2026-07-07
- **First published:** 2014-05-23
- **Size:** 4.46 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/biorhythm-cycles/id879917580)
- **Website:** [https://biorythm-cycles.netlify.app](https://biorythm-cycles.netlify.app/)
- **Privacy policy:** [https://biorythm-cycles.netlify.app/privacy.html](https://biorythm-cycles.netlify.app/privacy.html)

## Description

Biorhythm Cycles is a simple, fast tool to calculate and compare your daily biorhythms (**physical**, **emotional**, **intellectual**). See how you feel on a given day compared to the calculated values and gain insight into your energy, mood, and thinking.

It presents two cycle models: the **classical model** (23, 28, 33 days) and the **improved decimal model** (23.688437, 28.426125, 33.163812). A bottom graph shows the combined rhythm of all three cycles, and you can leave comments to indicate which model fits your perception, making it a practical educational and health-tracking tool.

## Rankings

- #103,178 — Overall

## Review summary

Reviews are mixed: some users praise apparent calculation precision and long-term use, but many report serious date-related issues (wrong today/date, timezone/locale problems, no date-format options), plus cross-device inconsistencies and intrusive ads in the latest version. These are the most recurring negatives, while positives center on perceived accuracy and continued use.

### Pros

- Claims to deliver highly precise biorhythm calculations.
- Long-term usage by users and some positive recommendations.
- Displays the biorhythm cycles and includes dates (the bottom dates help).

### Cons

- Date/time handling is inaccurate and inconsistent across devices: today’s date can be behind or wrong on charts, and there's no way to update locale/time settings or date format.
- Inconsistent results across devices (same birthday yields different biorhythms).
- Intrusive ads in the latest version (loud video ad) caused users to uninstall.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id879917580)