Hello,
This project sounds like one I can deliver you a fantastic solution for!
I have a lot of experience developing for Filemaker Go on iPad and iPhone for exactly these kind of apps/files, i.e. for surveys, estimates etc to be entered into the 'app' and for PDF reports to be generated, previewed and sent by email. For your project, I can bring a wealth of knowledge, tricks and methods that will result in a highly effective solution. For example, building in fallback features such as warning the user when an email fails to send due to lack of internet connection, so that it can be sent at a later time when the device is online, and if required, a process whereby data collected can be uploaded to a centralised database for back office admin needs. I can also build in device registration procedures so that the file can only be used on devices that you authorise.
The current version of FileMaker Go (v14), is the best version yet for delivering app solutions, and it really is a pleasure to work with.
I am UK based (NE Scotland), and would love to find out more about what you are looking to achieve with the 'app'. Please do get in touch, and it would be great to chat more.
Regards,
Sky.