Sifter Chat
Authenticated ephemeral proximity chat — join rooms only when you're physically present
Free - Free on the App Store; requires iOS 16+
About Sifter Chat
Sifter is a hyperlocal, geofenced chat app for iOS that creates authenticated, ephemeral chat rooms tied to physical locations. Walk into a space or event and instantly join a room — walk away and the chat disappears. No invites, QR codes, or remote lurkers; conversations leave zero trace and are limited to people actually present. Ideal for conferences, campuses, coffee shops, festivals and other real-world gatherings.
Key Features
- Authenticated, proximity-based geofenced chat rooms
- Ephemeral conversations with zero logs or history
- Automatic join/leave by physical presence — no invites or QR codes
- Privacy-first: no remote lurkers and no notifications following you home
- Built for real-world use cases (conferences, campuses, coffee shops, festivals)
Who is this for?
Event attendees, conference and campus communities, local businesses and anyone who wants ephemeral, location-based group chat
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FreeFree on the App Store; requires iOS 16+
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