While the new Web Summit app does not have a built-in chat feature, you can still easily connect with other attendees. Once you connect with someone on the app, you can email them. When you click on a connection's profile, you will see a "Get in touch" button.

Additionally, when logging in to the app, you will have the option to add your number and connect your WhatsApp. You can then chat via WhatsApp with the attendees you have connected with, if they have also linked their WhatsApp account.

Please note that by connecting with someone on the app, you are agreeing to share your email address.