This app is for developers.
UTI Inspector shows the Unitform Type Identifier (UTI) information about any document on your device: which UTIs are registered for a given file extension, which apps declared them and how they did it.
When you create a document-based app, it is sometimes helpful to know UTIs declared by third-party apps. Firstly, they can be useful as an example of correct UTI declaration. Secondly, they help to make your app compatible with third-party file formats (you can see which UTIs to import in your app). Finally, UTI Inspector helps in debugging any issues related to conflicting UTI declarations.
With Family Sharing set up, up to six family members can use this app.