H Shikhar,
By default Adobe Analytics does not collect any PII for the visitors coming to your site. I believe emails, addresses etc are PIIs.
These means that you would have to collect these data manually, so check your reports by making a simple search in the menu to see if you capture these data already.
Having said that please be aware that some countries have very strict privacy rules and it does apply to Analytics tool, therefore you should not collect any PII data in Adobe Analytics in most of the cases.
Now if you do not collect these informations, you can track the customer ID generate at you side that would be unique to each visitor. Then you could report on this unique customer IDs and cross check the details for these ID using your internal Database for the informations for the users if it is at al possible.
Another good way to measure your customer's satisfaction using mobile is to use a survey that will only be shown to users visiting your website on mobile devices. This is not the topic of this post so I won't go in details but I would advise you to look into this option.
Now to answer the second question, you can run the report Visitor profile >> Technologies >> Operating System Types and you should be able to see data for user coming using IOS or Android. You can also segment on the same and apply it to other reports to see meaningful data.
Best regards.
Alexis Cazes