Your colleagues can join you in a Feeting without signing up and even without the app on their mobile phone. You can open the app and copy the randomly generated invite link or your own personal invite link from the home screen (e.g., https://feetwith.me/x4ns94).
Go to your Agenda tool, like Microsoft Outlook or Google Calendar, and schedule an appointment like you usually do. Paste the invite link in the 'Location' field and you're good to go. Enjoy your Feeting!
Btw, did you know we have a nice Outlook Add-on that makes scheduling a Feeting even easier?
You can download it here: