# Cosmic Energy vs Rytha

The clearest difference is update cadence: Rytha at every 4 days against Cosmic Energy's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cosmic Energy sells 2 in-app purchases, starting at $3.99 per month and Rytha sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Cosmic Energy ships an update fortnightly, Rytha every 4 days. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Cosmic Energy | Rytha |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 13 MB | 3 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Marcel Speerschneider](https://appshunter.io/developer/1873662289) | [Thomas Stahmer](https://appshunter.io/developer/6799920369) |

## What reviewers say

### Cosmic Energy

[App page](https://appshunter.io/ios/app/cosmic-energy/id6758563848)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cosmic Premium Monatlich | $3.99 | per month |
| Cosmic Premium Jährlich | $29.99 | per year |


### Rytha

[App page](https://appshunter.io/ios/app/rytha/id6811962385)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rytha Premium | $5.99 | one-time |


## Frequently asked questions

### Is Cosmic Energy free?

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

### Is Rytha free?

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

### Do Cosmic Energy or Rytha have ads?

Neither Cosmic Energy nor Rytha shows ads.

### Which is updated more often, Cosmic Energy or Rytha?

Cosmic Energy ships an update fortnightly, and Rytha every 4 days. Most recently, Cosmic Energy was updated on October 24, 2026 and Rytha on October 26, 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.*