Free covers the basics: your own care profile, unlimited family members, medications, appointments, the documents vault, the calendar, reminders, and the Snapshot share link. For one caregiver organizing a family, that's usually enough.

Pro adds the 💬 Notes feed compose (so you and the rest of your circle can leave care messages for each other), multi-circle collaboration (when a sibling or a second parent keeps their own circle but you all overlap), and priority support. You probably don't need Pro on day one. The clearest signal is when you've invited the third sibling and people are starting to ask who can post.