Clearsweep checks a room with the five things a phone can actually check
And it tells you, next to every result, what each of those five cannot find. That second half is the product. A phone cannot clear a room, and an app that implies it has is worse than no app at all.
The scan is free, there is no sign-up, and nothing you scan is sent anywhere.
Is it free, and where do I get it?
It is free: no price, no account, no subscription. Clearsweep is an Android app and it is not in an app store yet, so there is nothing to download today. This page will link to the listing the day there is one. Questions in the meantime: the FAQ, or [email protected].
The five checks
Network cameras
Lists the devices that answer on the Wi-Fi this device is joined to, with what each one says about itself (its name, its open ports, what it announces). The laptop tool also matches each one's hardware address against known camera makers; a phone is not allowed to read those.
Bluetooth trackers
Listens for Bluetooth Low Energy advertisements and flags the ones that match known tracker families, especially any that keep appearing as you move.
Magnet sweep
Reads the phone's compass sensor and reports where the magnetic field jumps, because most stick-on vehicle trackers are held on by strong magnets.
Infrared viewer
Shows the camera feed so you can look for the infrared lamps a night-vision camera uses. Those lamps are invisible to the eye but usually visible to a phone camera.
Lens glint
Turns on the torch so you can sweep the room and watch for the bright pinpoint reflection a lens returns straight back at you.
The Wi-Fi check is really several checks in one: how the network is set up, whether a sign-in page is in the way, what its DNS says, what the router exposes, and what else is on it. They have their own page: the network check.
What "nothing found" means here
When the checks come back empty, the screen does not say you are clear. It says “Nothing found by the checks that ran”, and then lists what those checks miss — because those are two different facts and the difference can matter a great deal to you.
Three of the five checks — the magnet sweep, the infrared viewer and the lens glint — end with you looking, not with the app deciding. The app can tell you the magnetic field here is far stronger than it was two steps ago. Only you can see what is there.
How a tracker is told apart from someone else's keys
Every café is full of other people's trackers. Clearsweep only says a device is travelling with you after it has been heard in at least 3 different places over 20 minutes or more. One long stay in one room counts once, not forty times.
It also never merges two different Bluetooth ids into one device. Trackers change their ids on purpose; guessing that two ids are the same device is how an app invents a stalker out of two strangers walking past. What it does instead is tell you that this is a blind spot, and point you at the magnet sweep, which does not use Bluetooth at all.
Where the names come from
When a result says “Hikvision” or “Tile”, that name comes from a public registry, not from our memory. Camera hardware prefixes are generated from the IEEE MA-L registry (155 prefixes, read 2026-10-17); Bluetooth service numbers from the Bluetooth SIG assigned numbers (5 entries, read 2026-10-17).
Those registries assign a number to a company, never to a product. So a Bluetooth number registered to Apple tells you an Apple accessory is advertising — it does not tell you it is an AirTag, because Find My headphones use the same number. Clearsweep says “possible” in that case and explains why, rather than naming a product the registry does not name.