# ARC Chrono vs Biorhythm Guide

The clearest difference is iOS requirement: ARC Chrono at 12.0 against Biorhythm Guide's 18.5. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ARC Chrono | Biorhythm Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biorhythm-guide/id6751174004/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Free |
| Size | 30 MB | 5 MB |
| Requires iOS | **12.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Double-Alpha Academy BV](https://appshunter.io/developer/344540987) | [Khalid Mills](https://appshunter.io/developer/482496223) |

## What reviewers say

### ARC Chrono

[App page](https://appshunter.io/ios/app/arc-chrono/id6723881296)

**Features:** macOS Compatibility

**In-app purchases:** none


### Biorhythm Guide

[App page](https://appshunter.io/ios/app/biorhythm-guide/id6751174004)

Understand your daily physical, emotional, and intellectual cycles with personalized charts and AI-driven insights. Connect with Apple Health or manually enter your birthdate for tailored guidance on optimizing your day.

**Highlights:** Personalized biorhythm calculations, AI-driven daily summaries, Day navigation for planning, Apple Health integration, Clean and simple UI

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ARC Chrono free?

ARC Chrono is free to download, with no in-app purchases.

### Is Biorhythm Guide free?

Biorhythm Guide is free to download, with no in-app purchases.

### Do ARC Chrono or Biorhythm Guide have ads?

Neither ARC Chrono nor Biorhythm Guide shows ads.

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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.*