It’s up to you! AppyFair provides a tool to create and customize a form so that you can select the information you want to receive from your attendees when they register.
You can choose which fields should be mandatory and which should be optional, and whether the information provided should be private or public (visible to other event guests).
You can also request further information post-registration from different audience segments (i.e. just attendees or just exhibitors).
Please note: you, the organizer, are the person responsible for processing personal data and so must apply your privacy policy and comply with the regulations (the information shared across attendees, the length of time the data is kept etc).