We are working on a solution where you can have the option to input your data using your PC/Mac.

Unfortunately, In the meantime, you either have to enter the data by hand on the iPhone's keyboard, or you can pair a bluetooth keyboard to your phone to use that to enter text.

Don't forget, you can set up your default data in the settings (under 'Default Client Data'). This means that the same questions/shots/kit can be easily repeated from client to client, which saves your thumbs the effort!