MBTA Go vs XCoord

MBTA Go is the official app for live, public transit information in the Greater Boston area. Check live arrival times, track your vehicle, and learn about the latest closures. App features: • Check live arrival times: Get the latest estimates of when your bus or train will get to you. • Track your vehicle: Check how many stops away your bus or train is, and see live vehicle locations on the map. • Learn about the latest closures: Find out if your there is a closure on your route with clear alerts and maps. • Share feedback: Provide feedback to help us resolve issues, make improvements, and prioritize what we work on next. We want to make MBTA Go accessible to all riders who have a smartphone. The app supports language translations and the following mobile accessibility features: • VoiceOver for riders who are blind or have low-vision • Switch and Voice Control for riders with mobility impairments If you have questions about MBTA Go, email us at apphelp@mbta.com.

XCoord is a privacy-first live location sharing app for small groups — families, hiking trips, friends meeting up at a festival, parents tracking each other on a school run. WHY XCOORD IS DIFFERENT • End-to-end encrypted. The server only ever sees encrypted location blobs. Decryption keys are derived from your invite code, which never leaves your device once the group is created. • No accounts. No phone number, email, or social login. Just a display name you can change anytime. • Self-dissolving groups. Pick 1–15 days when you create a group; it auto-deletes when the timer ends. • One group at a time. Keeps things simple — no notification storms. HOW IT WORKS 1. Create a group → share the QR code or 10-character invite. 2. Friends scan or paste; everyone shows up on the map. 3. Move around — your dot follows you, theirs follows them. 4. Group expires (or you leave) → server forgets you exist. PRIVACY HIGHLIGHTS • AES-256-GCM encryption (industry standard, used by Signal, WhatsApp). • Invite codes are hashed before reaching the server — even if our database is stolen, attackers can't decrypt anyone's location. • Open privacy policy. We don't sell data. The only third-party SDK is Google AdMob (banner + occasional rewarded ads). GREAT FOR • Family meetups in unfamiliar cities • Hikes, festivals, conferences • Parents tracking school pickups • Friends finding each other at a venue PERMISSIONS • Location (always) — to share your dot with the group, even when the app is backgrounded. • Notifications — for the foreground service indicator. • Camera (optional) — to scan invite QR codes. SUPPORT walush.com/xcoord — privacy policy, FAQ, contact.