Hi there, App requirement is clear by checking the description and wireframes.
So there will no logging feature because its only used by you. You will add task, put the detail, check the detail later on, can search the added task, by address and by contractor. Export the data into excel file format. Able to email to contractors via app.
For exporting the data in excel file that is possible in Android, user can save the file in mobile but not in iOS, because iphone have no file system as you know.
You can export the data in excel then you can mail that in your mail.
Let me know your thought.
Do you want history of emails?
Do you want iOS & Android both?
I am ready to help. Allow me to discuss.
Note- final quote after discussion.
Thanks,
Umar