biorhythm cycles

Name: biorhythm cycles
Rating: 4.3 (219 reviews)
Author: Petro Riznyk

By: Petro Riznyk

Health & Fitness

Features & Capabilities

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.

User Growth & Download Statistics

App Education Sports

By:

Petro Riznyk

Rating:

4.30

(219) 0.30

Version:

2.0.1 Last updated: 2021-07-28

Version code:

843240721

Creation date:

2014-05-23

Compatible devices:

Size:

21.59MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-05

Compare stats and ranking:

Ranking

# 113,366 ▼ 15,319

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Petro Riznyk

Apple Apps Store

https://apps.apple.com/us/app/biorhythm-cycles/id879917580

User Reviews

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.

Recent reviews

Tremendously precise...differs a lot from the classical...it makes you wonder why!!

by AJ*****, 2026-01-20

I have Biorhythm on both my iPhone and iPad. Same birthday on each but biorhythms are as different as night and day. Seems as there is no science behind this app!!!