# biorhythm cycles vs Biorhythm Calculator

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.

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.

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.

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.

## The numbers

| Metric | biorhythm cycles | Biorhythm Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (223 ratings)](https://appshunter.io/ios/app/biorhythm-cycles/id879917580/reviews) | **[4.5 (13 ratings)](https://appshunter.io/ios/app/biorhythm-calculator-biosync/id6758400277/reviews)** |
| Number of ratings | **223** | 13 |
| Positive reviews | 40.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 56 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Petro Riznyk](https://appshunter.io/developer/879917583) | [Eiras Labs LLC](https://appshunter.io/developer/1774544882) |

## What reviewers say

### biorhythm cycles

[App page](https://appshunter.io/ios/app/biorhythm-cycles/id879917580)

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:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |

**What reviewers like**

- ✨ Very exact and precise
- 👍 Loved for several years
- 💯 Muy útil !! Highly recommended
- 🌟 Uncannily accurate
- 📈 Useful for experienced users

**What reviewers complain about**

- ❓ No coherence, different results
- 👎 Disappointing free version
- ❌ Cannot edit date of birth
- 🤷 Needs more explanation
- 🗑️ Useless, couldn't enter DOB

**Reported bugs**

- 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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/biorhythm-calculator-biosync/id6758400277)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BioSync: Weekly subscription | $7.99 | per 7 days |
| Discounted yearly susbcription | $24.99 | per year |
| BioSync: Yearly Subscription | $39.99 | per year |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*