I built CheckedIn for the Bubble Free-For-All Challenge — a lightweight safety net for anyone doing something alone: a first date, a solo run, a walk home, a rideshare.

You start a timed session with your emergency contacts. Check in before the deadline and nothing happens. Miss it, and your contacts are automatically notified with your last known location — no manual texting, no relying on memory in the moment.

Built entirely in Bubble — workflows drive the check-in state machine (active → pending → resolved/alert), with a "Signal & Calm" design system where color itself communicates status: teal for safe, amber for pending, and coral reserved only for real alerts.

Full walkthrough in the video below. Would love your feedback 👇