Biorhythm Alertness is the household name in biorhythm alertness, but it's far from the only option. We track 213+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
This app tracks your physical, emotional, intellectual, and intuitive biological cycles. It provides visual graphs of these rhythms and notifies you of critical days when your vulnerability is highest. Easily manage multiple user profiles for family and friends.
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.
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.
What are the best biorhythm alertness apps for iPhone?
Biorhythm Alertness tops our biorhythm alertness apps ranking as of July 2026, with a 2.0-star average from 4 App Store ratings, and it's free to download.
Are there free biorhythm alertness apps for iPhone?
Yes — 19 of the top biorhythm alertness apps we rank are free to download, including Biorhythm Alertness and Biorhythm-365.
Does Biorhythm Alertness have ads or in-app purchases?
Biorhythm Alertness has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
How many biorhythm alertness apps are on the App Store?
We track 213+ biorhythm alertness apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
What are the main biorhythms Biorhythm Alertness tracks?
Biorhythm Alertness tracks four primary biorhythms: Physical, Emotional, Intellectual, and Intuitive. These rhythms are presented as sinus curves influenced by your birth date.
How does Biorhythm Alertness notify users of critical days?
When a particular rhythm crosses the X-axis from top down, it's considered a critical day. Biorhythm Alertness sends a notification to alert you during these vulnerable periods.