MCPE (Minecraft Pocket Edition) Addons are user-created modifications that enhance or change the gameplay in Minecraft on mobile devices. These addons are essentially small files that allow players to add popular features such as:

1. **Popular Mobs**: Add custom creatures, animals, or monsters to the game.
2. **Textures**: Change the appearance of blocks, items, or entities for a fresh visual experience.
3. **Popular Items & Blocks**: Add smart tools, weapons, furniture, or even entire block types for different functionalities.
4. **Gameplay Mechanics**: Modify or create awesome gameplay systems, like combat mechanics, physics, or how certain blocks work.
5. **Awesome Biomes**: Introduce entirely different environments with unique landscapes, weather, and creatures.
6. **GUI Mods**: Alter the game's user interface, from menus to inventory systems, for an improved or different user experience.These addons are easy to install and use.