My wife is in a position (board chair for a co-op) that results in her sending out a lot of invites to events. Evite has kinda been the go-to in her social/co-op group for ages, but man it suuuuuuucks these days. Ads everywhere, annoying patterns, and lacks a bunch of nice features that this seems to have. Very happy to see this
I've used it for so much community organizing. It's such a simple tool and nobody has to make an account. You put in your name and an (optional) password. The optional password feature has served as a source of inspiration in my own projects. It pushed me to consider "does this really need an account? Can it be done without one?"