Post locks your notes to exact GPS coordinates using ARCore Geospatial. Drop a message on any building — anyone walking by can discover it in AR.
Every post is anchored to real-world GPS coordinates and altitude — persistent across sessions and devices.
Google's Visual Positioning System reads building features from Street View data to anchor your posts within meters — not just city blocks.
StreetscapeGeometry maps the 3D structure of buildings around you. Your pin snaps to surfaces, not just floating in space.
Close the app and come back tomorrow. Your posts are still there, exactly where you left them, visible to everyone nearby.
See every post within 1km on a map. Tap any pin to preview the message before you walk over to view it in AR.
Quick post suggestions adapt to the place category — coffee shops, parks, transit hubs. Drop in seconds.
Camera data never leaves your device. No selling data. No surveillance. Just the posts you choose to share.
Open Post and point your camera at any building. The VPS accuracy badge turns cyan once the system locks on — usually 2–5 seconds outdoors.
A reticle snaps to the building surface. Long-press to charge your pin. Release and type your message. It's anchored to that exact spot in the world.
Anyone with Post who walks within range will see your pin floating on the building in AR. The city becomes a canvas.
No marker-based tricks. No QR codes. No pre-mapped spaces.
Matches the visual features of real buildings against Google Street View data to determine your exact position and orientation.
Real-time 3D geometry of building facades lets pins anchor to surfaces with sub-meter accuracy, not just coordinates.
9-tile GeoHash fan-out queries find every post within your radius in milliseconds regardless of how many posts exist globally.
Every post is written through an authenticated backend API — never directly to the database. Built to scale from day one.
Available on iPhone and Android. Works anywhere Google Street View has been.