Evite - Send online invitations for all occasions by email or text message. Create invites for birthdays, baby showers, save the dates, or customize your own design.
GetStream.io - APIs for the development of scalable newsfeeds and chat applications.
RSVPify - A powerful and awesomely customizable platform for selling tickets online for your event.
Geneva - An all-in-one communication app for groups & communities
JustRSVP.me - Online Invitations and response tracking for weddings, baby showers, birthdays, parties, and other...
müteme - A free Zoom mute button for Mac