One of the reasons why iOS/Android App form is preferred to the web form is because it is so easy to swap users on the iOS/Android App form.
To Swap Users:
1. Open form on iOS/Android App.
2. Tap on your face photo at the bottom left corner of the screen.
3. Tap 'Users' icon (circled in red below).
4. Select the name of the new user that you want to assign the form to.
When the above is done, the new user and its meta data (e.g. team leader, location, manager) will be given to the form.
This does NOT change the user on other screens on the App such as Inbox, Activity and Analytics. If the new user has nothing to do with you (e.g. not your team member), you won't see the donor who has just been signed up anywhere on the App. To see the donor, you have to logout and then log back in as the user who had the form assigned to them.