# 4K Wallpapers HD vs Mekanyk Sync

The clearest difference is in-app purchases: Mekanyk Sync at none against 4K Wallpapers HD's 1. Mekanyk Sync also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 4K Wallpapers HD sells 1 one-off in-app purchase. Mekanyk Sync asks for nothing beyond the download.

4K Wallpapers HD ships an update every 4 months, Mekanyk Sync every 3 weeks. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 4K Wallpapers HD | Mekanyk Sync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 102 MB | 55 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ivka Veljkovic](https://appshunter.io/developer/1412528580) | [Mekanyk Tech](https://appshunter.io/developer/1811095036) |

## What reviewers say

### 4K Wallpapers HD

[App page](https://appshunter.io/ios/app/4k-wallpapers-hd/id1546443105)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Mekanyk Sync

[App page](https://appshunter.io/ios/app/mekanyk-sync/id6745171653)

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

**In-app purchases:** none


## Frequently asked questions

### Is 4K Wallpapers HD free?

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

### Is Mekanyk Sync free?

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

### Do 4K Wallpapers HD or Mekanyk Sync have ads?

4K Wallpapers HD shows ads; Mekanyk Sync does not.

### Which is updated more often, 4K Wallpapers HD or Mekanyk Sync?

4K Wallpapers HD ships an update every 4 months, and Mekanyk Sync every 3 weeks. Most recently, 4K Wallpapers HD was updated on October 7, 2026 and Mekanyk Sync on October 17, 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.*