# Blind Echo vs Ulukayın

The clearest difference is in-app purchases: Blind Echo at none against Ulukayın's 10. Blind Echo also leads on update cadence (every 2 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ulukayın sells 10 one-off in-app purchases. Blind Echo asks for nothing beyond the download.

Blind Echo ships an update every 2 days, Ulukayın weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Blind Echo | Ulukayın |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Size | 36 MB | 243 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Kutay incirci](https://appshunter.io/developer/1893639912) | [PRIME DIGIT YAZILIM DANISMANLIK ANONIM SIRKETI](https://appshunter.io/developer/1555416800) |

## What reviewers say

### Blind Echo

[App page](https://appshunter.io/ios/app/blind-echo/id6762281373)

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

**In-app purchases:** none


### Ulukayın

[App page](https://appshunter.io/ios/app/ulukayn-world-tree-puzzle/id6772331726)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Act I — Awakening Petals | $1.99 | one-time |
| Act II — Conflict Petals | $1.99 | one-time |
| Act III — Ascension Petals | $1.99 | one-time |
| Alaz's Flamebearer | $4.99 | one-time |
| Kızağan's Warbanner | $4.99 | one-time |
| Ülgen's Grace | $4.99 | one-time |
| Kayra Khan's Firmament | $6.99 | one-time |
| Erlik's Shadow | $6.99 | one-time |
| All-Spirits Bundle | $9.99 | one-time |
| Wardrobe Bundle | $24.99 | one-time |


## Frequently asked questions

### Is Blind Echo free?

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

### Is Ulukayın free?

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

### Do Blind Echo or Ulukayın have ads?

Both Blind Echo and Ulukayın show ads.

### Which is updated more often, Blind Echo or Ulukayın?

Blind Echo ships an update every 2 days, and Ulukayın weekly. Most recently, Blind Echo was updated on October 31, 2026 and Ulukayın on October 31, 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.*