A free app for Android, by Doncaster Craft.

Portals for Minecraft: Mods, Addons, Maps is an unofficial application for Minecraft Pocket Edition. It includes a collection of mods, maps, and add-ons that can be downloaded and installed to your game without the need to change any of the existing files. The app provides a quick and easy way to get all the necessary files to install into the game.

The mods in the collection are all compatible with each other and with all the versions of Minecraft. The collection includes a mod that allows you to craft a portal gun, which is a super cool weapon that can be used to travel between different worlds.