Comparison

biorhythm cycles vs Biorhythm Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

biorhythm cycles

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.

Highlights
  • Calculate physical, emotional, and intellectual biorhythms
  • Compare daily biorhythm values to personal feelings
  • Utilize classical and improved biorhythm models
  • View generalized biorhythm graph
  • Track cycles from birth date
Features
Read full description

Biorhythm Cycles calculates your three classic biorhythm cycles from your date of birth and plots them on a clear, interactive graph. According to biorhythm theory, three cycles run from the day you were born: • Physical (23 days) — energy, strength and stamina • Emotional (28 days) — mood and feelings • Intellectual (33 days) — focus and creative thinking Knowing your biorhythms makes it easier to sense what to expect from yourself on any given day — when to plan important things and when to take it easy. Features: • Interactive graph of all three cycles • Swipe through days to see past and upcoming highs and lows • Two calculation models: classic (whole days) and improved (more precise periods) • Simple, modern interface Just enter your date of birth and the app instantly builds your biorhythms. Everything is calculated right on your device. Download for free and follow your biorhythms every day!

About

Biorhythm Calculator

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.

Highlights
  • Physical, emotional, and intellectual cycle tracking
  • Daily biorhythm levels visualization
  • Future date prediction
  • Compatibility tracking with friends
  • AI biorhythm coaching
  • Personalized daily insights
Features
Read full description

Unlock the science of your natural rhythms with BioSync – the most beautiful biorhythm tracker for iOS. YOUR BODY HAS A RHYTHM. LEARN TO LISTEN. Based on the century-old theory of biorhythms, BioSync calculates your three fundamental cycles from your birthday: ◆ PHYSICAL CYCLE (23 days) Track your energy, strength, and endurance. Know when to push hard at the gym or take a rest day. ◆ EMOTIONAL CYCLE (28 days) Understand your mood patterns, creativity peaks, and social energy. Plan important conversations for your best days. ◆ INTELLECTUAL CYCLE (33 days) Optimize your mental clarity, focus, and decision-making. Schedule important work when your mind is sharpest. KEY FEATURES ⏱ TODAY'S BIORHYTHM See your current physical, emotional, and intellectual levels at a glance with stunning wave visualizations. CALENDAR VIEW Look ahead to any date and see your predicted energy levels. Plan meetings, workouts, and important events for optimal days. COMPATIBILITY TRACKING Add friends, family, and partners to discover your biorhythm compatibility. Find out which days you sync best together. AI BIORHYTHM COACH Ask our intelligent assistant anything about your cycles. Get personalized advice on the best times for exercise, focus, creativity, and rest. DAILY INSIGHTS Receive personalized insights based on your unique cycle combinations – from "Power Days" when all cycles align to "Recharge Days" when rest is best. WHY BIORHYTHMS? Biorhythm theory suggests that our lives are influenced by rhythmic biological cycles affecting our physical, emotional, and intellectual capabilities. While scientific evidence is debated, millions find biorhythm tracking helpful for self-awareness and planning. BioSync makes this ancient wisdom accessible with modern design and AI-powered insights. BEAUTIFUL DESIGN • Elegant wave visualizations • Smooth animations • Dark and light themes • Designed for iOS with native components PRIVACY FIRST Your data stays on your device. We don't track you or sell your information. Your birthday and contacts are stored locally. Download BioSync today and start understanding your natural rhythms!

Screenshots

Biorhythm Calculator4 screens

Verdict

The call

The clearest difference is monetization model: Biorhythm Calculator at free against biorhythm cycles's free with in-app purchases. Biorhythm Calculator also leads on rating (4.5 vs 4.3). biorhythm cycles's advantage is ratings volume (223 vs 13). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. biorhythm cycles sells 1 one-off in-app purchase and Biorhythm Calculator sells 3 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Biorhythm Calculator holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: biorhythm cycles has 223 ratings behind it against 13, so its average is the more settled of the two.

UpkeepUpdate frequency

biorhythm cycles ships an update every 5 months, Biorhythm Calculator every 3 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
biorhythm cycles versus Biorhythm Calculator: the parameters behind the verdict, then further details
Parameterbiorhythm cyclesBiorhythm Calculator
PriceFreeFree
Rating4.3 (223 ratings)4.5 (13 ratings) — better
Positive reviews40.9% of reviews—
Number of ratings223 — better13
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size4 MB56 MB
Age rating4++4
DeveloperPetro RiznykEiras Labs LLC

Customer experience

biorhythm cycles

All ratings206 ratings
Positive82.5%
Neutral5.8%
Negative11.7%
Written reviews22 reviews
Positive40.9%
Neutral13.6%
Negative45.5%

Biorhythm Calculator

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

biorhythm cycles

Reported bugs

7 issues
  • Biorhythms differ between devices
  • Cannot edit date of birth
  • Defaults to today's date when entering DOB
  • Current day calculation is a day behind
  • App is stuck on the current date
Show 2 more
  • App shows wrong date in chart
  • Forces audio ads on launch

Requested features

4 requests
  • Ability to zoom out and see a whole year
  • More explanation on how to use and benefit
  • Ability to set UTC offset
  • Option to change date format

Biorhythm Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

biorhythm cycles

One-time1
  • Remove ads$1.99
3 purchases

Biorhythm Calculator

Subscriptions3
  • BioSync: Weekly subscription$7.997 Days
  • Discounted yearly susbcription$24.991 Year
  • BioSync: Yearly Subscription7 Days trial$39.991 Year

Questions

Is biorhythm cycles free?
biorhythm cycles is free to download, with in-app purchases available.
Is Biorhythm Calculator free?
Biorhythm Calculator is free to download, with in-app purchases available.
Which has better reviews, biorhythm cycles or Biorhythm Calculator?
Biorhythm Calculator is rated higher. biorhythm cycles averages 4.3 out of 5 from 223 ratings, while Biorhythm Calculator averages 4.5 from 13 ratings.
Do biorhythm cycles or Biorhythm Calculator have ads?
Neither biorhythm cycles nor Biorhythm Calculator shows ads.
Which is updated more often, biorhythm cycles or Biorhythm Calculator?
biorhythm cycles ships an update every 5 months, and Biorhythm Calculator every 3 months. Most recently, biorhythm cycles was updated on November 11, 2026 and Biorhythm Calculator on November 5, 2026.

Other comparisons