Vipps is a Norwegian mobile payment application. It's used by 75% of the Norwegian population.
This is gathered when you create your account. You need to log in with your Norwegian national ID via BankID and provide a valid phone number that is assosiated with your national ID.
Whenever you use the app, to send and receive money and communicate with others. This is to prevent money laundering, financing terrorism and fraud.
In order to send and receive money you must provide valid banking details assosiated with your card(s).
For customer relations (you), statistics, marketing, testing, improvement, security and preventing fraud and other punishable behaviour.
To give you relevant stores etc. nearby.
To easier look up your contacts (instead of typing their number).
To take a profile picture, scan payment info like invoices, save invoices or add pictures to groups. Vipps saves all the photos you upload.
In order to make each transaction they store them indefiently and give them to your bank assosiated with the card that was used in the transaction.