# Black Wallpapers 4K vs Luku

The clearest difference is in-app purchases: Luku at none against Black Wallpapers 4K's 3. Luku also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 3 months). Black Wallpapers 4K's advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Black Wallpapers 4K sells 3 in-app purchases, starting at $2.99 per 7 days. Luku asks for nothing beyond the download.

Black Wallpapers 4K ships an update every 3 months, Luku every 2 weeks. The most recent releases landed on October 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Black Wallpapers 4K | Luku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/black-wallpapers-4k/id6753000139/reviews)** | — |
| Number of ratings | **9** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 27 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sulman Hussain Khan](https://appshunter.io/developer/1688168453) | [Kalifa Toure](https://appshunter.io/developer/1860030462) |

## What reviewers say

### Black Wallpapers 4K

[App page](https://appshunter.io/ios/app/black-wallpapers-4k/id6753000139)

Discover a vast collection of elegant and modern black wallpapers in HD and 4K resolution. Enhance your iPhone's look with live, AMOLED, and dark aesthetic designs, updated daily for a fresh, premium feel.

**Highlights:** Thousands of HD and 4K black wallpapers, Live and dynamic wallpaper options, AMOLED wallpapers for battery saving, Dark aesthetic and minimal designs, Daily updates with fresh backgrounds, Easy one-tap set and save functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $2.99 | per 7 days |
| Monthly subscription | $5.99 | per month |
| Yearly subscription | $19.99 | per year |


### Luku

[App page](https://appshunter.io/ios/app/luku/id6760457761)

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

**In-app purchases:** none


## Frequently asked questions

### Is Black Wallpapers 4K free?

Black Wallpapers 4K is free to download, with in-app purchases available.

### Is Luku free?

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

### Do Black Wallpapers 4K or Luku have ads?

Black Wallpapers 4K shows ads; Luku does not.

### Which is updated more often, Black Wallpapers 4K or Luku?

Black Wallpapers 4K ships an update every 3 months, and Luku every 2 weeks. Most recently, Black Wallpapers 4K was updated on October 30, 2026 and Luku on October 1, 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.*