4K Wallpapers - HD Backgrounds Wallpaper App

4K Wallpapers - HD Backgrounds is a personalization app by Technozer Solution that lets you browse, download, and apply a large variety of high-resolution and live wallpapers to your home and lock screens. The app is aimed at Android users who want a quick way to refresh their device's look without spending time searching the web. It combines a big library of images and videos with simple one-tap actions, so even people new to Android customization can change their background in seconds.

At the heart of the app is a collection of 15,000+ wallpapers spanning categories such as nature, abstract, landscapes, animals, supercars, superheroes, anime, 3D, AMOLED, and more, with over 33 categories in total. Beyond static images, it includes live wallpapers, video backgrounds, a parallax effect that reacts to the device's motion sensors, and a double wallpaper option for separate lock and home screen images. An automatic wallpaper changer can rotate your background periodically, and a daily update feed helps keep the content fresh. You can also set or share a wallpaper right after finishing a phone call, and send favorite images to friends through common messaging and social apps.

The app is free to use and supported by ads, with optional in-app purchases. It requests permissions such as storage, photos/media/files, phone, and device ID access; some permissions, like location and contacts, are optional and are used only for personalized recommendations or assigning ringtones to contacts. The developer states that personal files and contact information are not imported or used. To run the app smoothly, your device needs Android 10 or higher.

Key features

• Auto wallpaper changer that periodically updates your background for you.
• One-tap option to set any image as your home or lock screen wallpaper.
• Edge lighting live wallpaper with curved, multicolored corner lighting.
• Library of 15,000+ wallpapers across 33+ categories, including nature, anime, 3D, AMOLED, and black themes.
• Daily additions of fresh wallpapers and a personalized Discover feed.
• Download and save favorite wallpapers directly to your gallery.
• Live wallpapers that support setting video backgrounds on both home and lock screens.
• 3D parallax effect that uses device motion sensors for a depth effect.
• After-call wallpaper change or share option.
• Separate image collections for lock screen and home screen backgrounds.

How to install

1. Tap the download button on this page to get the APK file (file size: n/a).
2. When Android asks, allow your browser or file manager to install apps from that source (the "Install unknown apps" setting).
3. Open the downloaded APK file from your notifications or file manager.
4. Tap Install and wait for the process to finish; Android 10 or higher is required.
5. Open the app and choose a wallpaper to set, download, or share.

Recent updates · 2.4.3

Version 2.4.3 brings an automatic wallpaper changer, plus a new premium collection of 4K and 8K live wallpapers. It also lets you change or share a wallpaper right from the after-call screen. Bug fixes and performance improvements are included as well.

People who enjoy personalizing their phone and want a large, easy-to-browse collection of 4K, HD, live, and 3D wallpapers. It suits beginners thanks to simple one-tap actions, as well as users who like changing their home and lock screens frequently.

Start with the Automatic Wallpaper Changer to see a variety of styles without manual work. Browse the 33+ categories and download favorites when you are connected to Wi-Fi. You can decline optional permissions such as location and contacts if you do not need personalized recommendations or contact-specific ringtones. Remember that the free version is supported by ads.

4K Wallpapers - HD Backgrounds is a straightforward personalization tool for Android 10 and newer. With thousands of images, live backgrounds, and an auto-changer, it gives beginners an easy way to keep their home and lock screens looking fresh and interesting.