# Collagena.ae vs R.K

The clearest difference is ads: R.K at none against Collagena.ae's shown. Collagena.ae's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (14.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Collagena.ae ships an update every 2 months, R.K every 5 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Collagena.ae | R.K |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 5 months |
| Size | 80 MB | 100 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stacks Holdings Limited](https://appshunter.io/developer/1076321313) | [RUKN ALKHOKH READYMADE GAR. TR L.L.C](https://appshunter.io/developer/1875118793) |

## What reviewers say

### Collagena.ae

[App page](https://appshunter.io/ios/app/collagenaae/id6747308274)

**Features:** macOS Compatibility

**In-app purchases:** none


### R.K

[App page](https://appshunter.io/ios/app/rk/id6758810976)

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

**In-app purchases:** none


## Frequently asked questions

### Is Collagena.ae free?

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

### Is R.K free?

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

### Do Collagena.ae or R.K have ads?

Collagena.ae shows ads; R.K does not.

### Which is updated more often, Collagena.ae or R.K?

Collagena.ae ships an update every 2 months, and R.K every 5 months. Most recently, Collagena.ae was updated on October 10, 2026 and R.K on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*