# Lunara vs Rhythmus

The clearest difference is in-app purchases: Rhythmus at none against Lunara's 1. Rhythmus also leads on update cadence (every 3 days vs monthly) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Lunara sells 1 one-off in-app purchase. Rhythmus asks for nothing beyond the download.

Lunara ships an update monthly, Rhythmus every 3 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Lunara | Rhythmus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 4 MB | 21 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sahil Jain](https://appshunter.io/developer/1856599863) | [Patrick Sarpen](https://appshunter.io/developer/6804829454) |

## What reviewers say

### Lunara

[App page](https://appshunter.io/ios/app/lunara-period-tracker/id6778888973)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lunara Pro | $5.99 | one-time |


### Rhythmus

[App page](https://appshunter.io/ios/app/rhythmus-cycle-syncing/id6804829452)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lunara free?

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

### Is Rhythmus free?

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

### Do Lunara or Rhythmus have ads?

Neither Lunara nor Rhythmus shows ads.

### Which is updated more often, Lunara or Rhythmus?

Lunara ships an update monthly, and Rhythmus every 3 days. Most recently, Lunara was updated on October 31, 2026 and Rhythmus on November 6, 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.*