# Rüya Anahtarı vs Katabasis

The clearest difference is ads: Katabasis at none against Rüya Anahtarı's shown. Katabasis also leads on update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Rüya Anahtarı sells 7 in-app purchases, starting at $0.99 per month and Katabasis sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Rüya Anahtarı ships an update every 3 weeks, Katabasis weekly. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Rüya Anahtarı | Katabasis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 62 MB | 54 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Baha BALABAN](https://appshunter.io/developer/1890366569) | [Seyitali Yetimolu](https://appshunter.io/developer/1896334708) |

## What reviewers say

### Rüya Anahtarı

[App page](https://appshunter.io/ios/app/ruya-anahtar/id6761590382)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aylık Premium Üyelik | $0.99 | per month |
| Premium Yıllık | $6.99 | per year |
| 75 Jeton | $0.99 | one-time |
| 20 Jeton | $0.99 | one-time |
| 40 Jeton | $0.99 | one-time |
| 150 Jeton | $2.99 | one-time |
| 300 Jeton | $4.99 | one-time |


### Katabasis

[App page](https://appshunter.io/ios/app/katabasis/id6766888812)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Credits | $5.49 | one-time |
| 30 Credits | $14.99 | one-time |
| 50 Credits | $24.99 | one-time |


## Frequently asked questions

### Is Rüya Anahtarı free?

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

### Is Katabasis free?

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

### Do Rüya Anahtarı or Katabasis have ads?

Rüya Anahtarı shows ads; Katabasis does not.

### Which is updated more often, Rüya Anahtarı or Katabasis?

Rüya Anahtarı ships an update every 3 weeks, and Katabasis weekly. Most recently, Rüya Anahtarı was updated on October 31, 2026 and Katabasis on November 9, 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.*