HavenMap.

A privacy-first family location-sharing app built for Softpulse Infotech. Every location is end-to-end encrypted on the sender's device using NaCl sealed-box (X25519 + XSalsa20-Poly1305) before it ever leaves the phone. The relay server — deployed on Cloudflare Workers — only ever sees opaque ciphertext. No accounts, no email sign-up, no central database of user locations. Families join via QR code and the app generates device-local X25519 + Ed25519 keypairs that never leave the device.

• Real-time family location on a live MapLibre (OSM) map — precise, approximate, or paused

• End-to-end encrypted location using NaCl sealed-box (X25519 + XSalsa20-Poly1305)

• Emergency SOS — one-tap full-circle alert with full-screen lock-screen notification

• Crash detection using on-device accelerometer/gyroscope (sensor data never leaves device)

• Safety timer (dead-man's switch) — auto-alerts family if check-in is missed

• Custody handoff receipts signed with Ed25519 for audit-log quality

• QR code-based circle invites — no account needed

• Low-battery alerts and saved places (Home, Work, School) with arrive/leave triggers

• 9 locales: EN, ES, FR, DE, IT, JA, KO, PL, RU

• Freemium — $19.99 lifetime IAP + optional annual subscription