I built a platform to manage invites using email for my wedding. We tracked delivery and opens. On the wedding website itself, we were able to have RSVPs for th

I built a platform to manage invites using email for my wedding. We tracked delivery and opens. On the wedding website itself, we were able to have RSVPs for the people we sent to, intake song requests with Spotify with autocomplete. It was pretty successful. It saved a ~$1000 in paper invites with postage and the stress of making sure people sent them back. We even had followed-up by sending reminder emails. Which we definitely couldn't have done with paper. The downside is that it's more informal but our guests appreciated the open bar instead. I'm building something similar for a friend's wedding right now with the intention of having open to the public with features like SMS and table seating generators.