# Colornostics vs Biorhythm Calculator

The clearest difference is ads: Biorhythm Calculator at none against Colornostics's shown. Biorhythm Calculator also leads on monetization model (free vs free with in-app purchases) and ratings volume (13 vs 1). Colornostics's advantage is rating (5.0 vs 4.5) and update cadence (every 2 weeks vs every 3 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Colornostics sells 2 in-app purchases, starting at $9.99 per month 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.

Colornostics holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Biorhythm Calculator has 13 ratings behind it against 1, so its average is the more settled of the two.

Colornostics ships an update every 2 weeks, Biorhythm Calculator every 3 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Colornostics | Biorhythm Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/colornostics/id1595326972/reviews)** | [4.5 (13 ratings)](https://appshunter.io/ios/app/biorhythm-calculator-biosync/id6758400277/reviews) |
| Number of ratings | 1 | **13** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 161 MB | 56 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | +4 |
| Developer | [Soul Studio LLC](https://appshunter.io/developer/1581758578) | [Eiras Labs LLC](https://appshunter.io/developer/1774544882) |

## What reviewers say

### Colornostics

[App page](https://appshunter.io/ios/app/colornostics/id1595326972)

Discover your inner self through the psychology of color and Neuro-Linguistic Programming. This app helps you identify and overcome mental blocks, find balance, and improve your mindset for a more confident and light-hearted life. Explore your true self and transform your thinking.

**Highlights:** Color psychology analysis, Neuro-Linguistic Programming tools, Mindset of the Day, Quick Fix Problem Solver, Identify mental blocks, Improve self-awareness

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $9.99 | per month |
| Premium Access | $89.99 | per year |


### 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 Colornostics free?

Colornostics 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, Colornostics or Biorhythm Calculator?

Colornostics is rated higher. Colornostics averages 5.0 out of 5 from 1 ratings, while Biorhythm Calculator averages 4.5 from 13 ratings.

### Do Colornostics or Biorhythm Calculator have ads?

Colornostics shows ads; Biorhythm Calculator does not.

### Which is updated more often, Colornostics or Biorhythm Calculator?

Colornostics ships an update every 2 weeks, and Biorhythm Calculator every 3 months. Most recently, Colornostics was updated on October 30, 2026 and Biorhythm Calculator on October 24, 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.*