You know who you want to stay close to. You also know it has been longer than you meant since you spoke to some of them.

Moons is a small app for the twelve people who matter most. You pick them from your contacts, give each one a rhythm, and they orbit you on a single screen — as time passes without contact they drift outward and their colour follows. One glance tells you who is due.

The twelve-person cap is the point. It’s what removes tags, tiers, folders and pagination from the app, and it means adding a thirteenth person asks you a real question instead of quietly growing a database. If you need more than one twelve, you make a group: a client, a team, the school run. Up to four, each its own orbit, swipe sideways to spin to the next or pinch in to see them all around you at once.

• Tap someone to call, FaceTime, iMessage, email or WhatsApp them. Moons opens the right app and logs the catch-up for you
• Those are the defaults. Swap them in settings, add Signal or Telegram, and set them per person for the friends who are only on one of them
• Press and hold to record one that happened over lunch or at the school gates
• A page per person: their rhythm, notes, a list of facts worth remembering (their kids’ names, what they drink), and a grid of faces for clearing several at once
• Dates worth remembering, anniversaries, the day you met, whatever matters, each with a quiet nudge a week before
• A home-screen widget showing whichever group you choose, and a “Log a catch-up” Siri shortcut

No streaks, no scores, no red badges on human beings. Everything stays on the device — no account, no server, no analytics — so the privacy label reads “Data Not Collected” because that is literally true. It never reads a message either. Tapping a messaging icon opens that app on your chat with them and logs that you reached out. Moons has no access to what you said.