A free program for Android, by Craft Struff.

The Mods Skins Maps for Minecraft app provides more than 1000 skins, maps, seeds, and textures. It has an automatic installation system, so you don’t need to go through any additional steps to get the content on your mobile device. You can easily download the content you need in just one touch. The application also provides a convenient thematic catalog, so you can look for the content you need in a more efficient way. The application’s main menu is designed to give you a quick overview of the different categories. Each category has an extensive subcategory, so you can browse the different options in a more detailed way.