Yes. We don't charge money for the plugin and we never will. But you need a TexturePacker license to create the sprite sheets.
Of course. The plugin is not part of your game itself. It's only used to split the sprite sheets
Yes. The plugin code extends Unity's Editor, it is not deployed on the target devices.
The current version of the [TexturePacker Importer Plugin](https://assetstore.unity.com/packages/tools/sprite-management/texturepacker-importer-16641) is available from the Unity Asset Store.
TexturePacker creates [optimized sprite meshes](/texturepacker/tutorials/using-spritesheets-with-unity). The meshes have less overdraw and fewer vertices. This reduces GPU and CPU usage.
Usually not. We make exceptions in very rare cases.
Please try the following steps:
- Make sure that you use the newest TexturePacker Import Plugin from the Asset Store.
- Re-import all assets