The CommCare Toolkit is intended to provide utilities to aid in the successful creation, debugging, and usage of one's own CommCare app. Many of the utilities are targeted to more advanced users, and are therefore included in the toolkit app, rather than in CommCare itself. The utilities in the Toolkit app will help you to do things like properly size the multimedia that you want to include in your app, download other apps that you may need to use in conjunction with CommCare, and expedite the testing and debugging process.