Solver is a personal-safety app: one tap, and the people you trust know where you are.

Choose your guardians. Invite the people you trust; they accept, and you decide what each of them can see, from your live position to nothing at all. Every permission is per guardian and can be revoked at any time.

Works with the Solver button. Pair the physical Solver button and trigger an SOS with a single press, without unlocking your phone or opening the app. The button is optional; everything below works with the app alone.

One-tap SOS. When something is wrong, one press starts a countdown and then alerts your guardians with your position, by notification and by emergency text message. Your location keeps updating so they can follow you in real time until you are safe.

Fake call. Need a reason to leave? Solver rings your phone like a real incoming call from a guardian's name, and a voice answers when you pick up. Nobody is actually called.

Walk home watched. Start a journey, and if you stop responding or never arrive, your guardians are told.

Talk to your guardians. A push-to-talk voice channel connects you to your guardians instantly, even from the lock screen.

Evidence when you need it. Record video or audio during an incident; it is saved to your library and shared only with the guardians you chose.

Meet Roger, your assistant. Ask Roger to set a check-in, call you in five minutes, tell a guardian where you are, or simply keep you company. Roger also keeps your notes, tasks and reminders so your safety net stays active every day.

Health, in words only. If you allow it, a guardian can ask Roger how your day went. They hear "an active day" or "a short night", never a number, and nothing in your health data ever triggers an alert.

Privacy by design. Your position is shared only with the guardians you authorised. Whenever a guardian requests your location, you are notified and it is logged. There are no ads, no data brokers and no tracking.

Solver is not a replacement for emergency services. In a life-threatening situation, call your local emergency number.