Ultra Wallpapers (HD,4K) it's one of the best apps in the app store

Main app features:

+Easy to use

+Support all mobiles and tablets

+Set as wallpaper

+Different wallpapers categories (Nature, City, Animals, Cars, Cute, Beach, Celebrations ....and more)

+GIFs category (save or share)

+QHD or Quad High Definition wallpapers

+4k or UltraHD wallpapers

+Daily new wallpapers

+You can save wallpaper

+You can also share your HD-4K wallpaper with friends on Facebook, Twitter, Whatsapp, Google+, Hangouts, Pinterest, Instagram, Email, SMS, MMS and many more social platforms

+Different backgrounds for app user

+Mark your favorites in wallpapers favourite or your GIFs favourite

+Share with your friends and family

Key features:

Travel

Countries

Nations

Wallpaper

Cultures

Capitals

Nature

Cities

Beaches

Montane

Forest

Buildings

Historical landmarks

Bridges

Traveling

Traveling abroad

Traveling the world

Wallpapers

Continent

World

Earth

Ocean

Hd

4K

Gif

If you are looking for HD-4K wallpapers, this is definitely the app for you as you will find all kinds of wallpapers