The radar shows people nearby who are also up for something. It is the most sensitive feature in the app, so here is exactly what it does with your position.
Your position is blurred before it is stored
When you are visible, your device sends its coordinates to our server. The server does not store them. Instead it snaps the position to a coarse grid cell and shifts it by a fixed amount that is unique to you, and only that transformed position is written down. The raw coordinates exist in memory for the length of the request and are never saved.
Because the shift is per-person, two people standing together do not appear at the same point, and no displayed point corresponds to a building or an address. This is done on the server, so it is not something a modified app can switch off.
It expires by itself
Your presence on the radar has a three-minute lifetime, and your status has two hours. Both live in a temporary in-memory store with a timer, not in our database. Close the app and you fade off the map without doing anything.
Only while the app is open
Kaif reads your location while the app is open and on screen. There is no background location, no geofencing, and no history of where you have been — not stored privately, not stored at all.
Your controls
- Invisible mode — Settings › Privacy. Takes you off the radar entirely while everything else keeps working.
- Status — optional. Leave it blank and you appear without one.
- Blocking — immediate and mutual. A blocked person cannot see you on the radar, cannot message you, and cannot see your gatherings.
- Revoking location permission — in your device settings. Discovery falls back to picking a city by hand.
What other people actually see
Your first name, your photograph, your blurred position, your status if you set one, and the interests you have in common with them. Not your surname, not your exact location, not your other gatherings, and not the interests you do not share.