From the creators of RSVP.
Prices after free month are unknown and not mentioned anywhere on the site… nothing on requiring your cc to sign up either, but that's likely.
Note - anything and everything you post they own like with all things online. " all Content you submit to the Services you grant Us and our associated entities and service providers a worldwide, royalty-free, sublicensable, and transferable licence to host, store, use, display, reproduce, modify, adapt, edit, publish, and distribute that Content for as long as you use the Services
when you appear in, create, upload, post or send Content, you also grant Us and our associated entities and service providers the unrestricted, worldwide right and licence to use your name, likeness, and voice…"