If you are looking for a feature-packed skin editor app for Minecraft, Skin Editor 3D for Minecraft by CraftCreator is worth a try. This free app is an advanced version of the popular 'Skin Editor for Minecraft' app, offering more functionalities to edit skins. It supports both 64x32 and 64x64 skins and allows you to create new skins from scratch, browse the online gallery of over 20,000 skins, copy any player's skin by name, or import skins directly from Minecraft PE.

Skin Editor 3D for Minecraft comes with an array of editing tools that make it easy to customize your skins. These include a paintbrush, paint bucket, color grid selector, color gradient selector, eye dropper, zoom in/out, rotating tool, and undo/redo buttons. You can also adjust the visibility of each body part of your Minecraft character, making it easier to paint the inside of the body.

The app allows you to export skins in two different ways, either directly to Minecraft Pocket Edition or to your gallery. Please note that Skin Editor 3D for Minecraft is not affiliated with Mojang AB, the developer of Minecraft.