The campaign page
Everyone who loves them gets the link, and that's where the messages, the photos and the updates live.

What's on it
You write who they are and what's going on, add photos, and mark the milestones as they come. Over time, supporters' photos and words can become a short highlight film. You review it first, and the survivor keeps it.
Text it, email it, drop it in the family thread. You can see who's joined, and anyone who has can pass it along to someone you forgot.
Post how it's going, to everyone or just to family or coworkers. Mark the milestones: last round of chemo, a clean scan, home from the hospital. Supporters get a notification, so nobody hears it secondhand.
A campaign is never listed or searchable. It stays sealed until the survivor opens it and chooses what happens next, and donors can give without their name showing. The details are on the how it works page.