Mobile development -- 2

I need an Android app. I would like it designed and built. I had someone else start this app and couldn't finish it. I'll send there code if you. Like. I need an Android app. I would like it designed and built. I run a service company and carry out overhead crane inspections every 3 months on my customers cranes. I need the app for the service reports and export on one page PDF per crane. There is approx 30-80 items per page and graded bases on the condition of the item 4 colors and ABC or D grading system. Some customers have 1 crane and some have more cranes so I need to be able to export as one file or separate files I need to select. The file name needs to come from the asset number on the sheet. I want to be able to edit the template or report as there is no crane the same EG different components. At the bottom of the sheet there is a description of the fault found during the inspection. I need a separate sheet for customer sign off. Please see attached. I want to be able to access and edit the last service and issue new reports to maintain the history. If possible save the PDF on my local server. Or a file I can access later to generate the PDF. I will need email and password log in to access the app one time only so it cant be accessed by other people. There is an app available at the moment called iauditer. It is free to use for one user but the reports are to long 4-6 pages and usability for future services are not easy. But the report filling out is simple and easy to use I would like the same style if possible. At a later stage update the app to include customer log in either via the internet or the app to view their own history. Add a second page to the reports with photos of the fault found