# Ruby Rhythm vs CalNotes

The clearest difference is in-app purchases: Ruby Rhythm at none against CalNotes's 3. CalNotes's advantage is iOS requirement (14.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. CalNotes sells 3 in-app purchases, starting at $2.99 per 7 days. Ruby Rhythm asks for nothing beyond the download.

## The numbers

| Metric | Ruby Rhythm | CalNotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ruby-rhythm/id6502735923/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | Free | — |
| Size | 3 MB | 42 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vampire Squids LLC](https://appshunter.io/developer/1693677900) | [Kyle Orin](https://appshunter.io/developer/1610158454) |

## What reviewers say

### Ruby Rhythm

[App page](https://appshunter.io/ios/app/ruby-rhythm/id6502735923)

This app offers a unique approach to period tracking by integrating Traditional Chinese Medicine (TCM) principles. It helps users understand their cycle phases, energy levels, mood, and overall well-being with a user-friendly interface and cute animal illustrations.

**Highlights:** Period and cycle tracking, Traditional Chinese Medicine integration, Cycle phase identification (Inner Winter, Spring, Summer, Autumn), Insights into energy, mood, and well-being, User-friendly interface, Data privacy: local storage, no sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### CalNotes

[App page](https://appshunter.io/ios/app/calnotes-ai-food-diary/id6754843029)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Monthly Premium | $7.99 | per month |
| Yearly Premium - Best Value | $26.99 | per year |


## Frequently asked questions

### Is Ruby Rhythm free?

Ruby Rhythm is free to download, with no in-app purchases.

### Is CalNotes free?

CalNotes is free to download, with in-app purchases available.

### Do Ruby Rhythm or CalNotes have ads?

Neither Ruby Rhythm nor CalNotes 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.*