Newbie to ArcGIS online - want help creating a basic interactive, embeddable input app for real estate owners. I need them to be able to search for a street address, pinpoint a location near to their building, and add some various notes. 

Ideally, their input will be only visible to them; i.e. they are not inputting to a crowd-sourced layer, this is a private relationship between us and them. But there will be many different users who should be able to click on a link, rather than have to log in / have an account. 

We need to collect: 

- user-added point data / co-ordinates

- user-added metadata attached to the points

- preferably photos can be added to the points by users 

Anyone willing to help / guide / show me an example? Thanks a lot!

John M