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N0RMA

Spot trackers, drones and camera-like Wi-Fi. Nothing leaves your phone.
New in version 0.7.0
Version 0.7.0
- Two live radars (Bluetooth, Wi-Fi) with plain-language results; Find it, Watch it, This is mine
- Walk the whole house: a GPS-free room-by-room check of what is inside your home and what is a neighbor's
- New calm home screen, Rebaseline, four themes, lower battery use
- New app ID io.github.sloppytopp.n0rma: install it, then uninstall the old Homewatch app
N0RMA helps you check whether anything nearby is tracking or watching you - using only your phone's own Bluetooth and Wi-Fi radios. No account, no cloud, no ads, no analytics. It cannot even connect to the internet.

WHAT IT DOES
- Finds Bluetooth trackers that are separated from their owner (Apple Find My / AirTag-style, Tile, Samsung SmartTag, Chipolo) and ignores normal "owner nearby" signals
- Listens for FAA Remote ID drone broadcasts over Bluetooth and Wi-Fi, worded honestly as claims (Remote ID can be faked)
- Flags camera-like and drone-like Wi-Fi networks
- Tells you in plain words: "All clear", "Keeping an eye on something" or "Needs your attention" - with live proof it is working
- Tap-to-find: tap an alert for a hot/cold meter, warmer/colder arrow, a real compass sweep, and a GPS+compass arrow for drones that broadcast a position
- Room sweeps: build a baseline per room, spot what is NEW, and see which room a device is probably in
- Survey walks: log what you hear while you walk, see rough source positions, and save a KML (Google Earth) or WiGLE-format file - saved locally, nothing uploads
- "This is mine" for your own trackers and camera-like sources so they stop flagging
- Smart devices: nearby gadgets grouped by maker, plus a privacy checklist (Amazon Sidewalk, Ring/Alexa accounts, router)
- Physical-inspection checklist per room, and a camera-lens finder that uses the torch to spot lens glints in a dark room
- Sweep report: which rooms you swept and inspected, what was NOT checked, and what was flagged - it never says a place is "clear"
- Dark, low-glare screens and a dim-red night mode, so searching at night does not light up the street
- Discreet mode: neutral notifications hidden on the lock screen, PIN lock, hidden from recents and screenshots, a Notes/Weather disguise, one-tap quick exit
- "Try it with sample data" shows every screen working before you trust it with anything real

HONEST LIMITS
A quiet screen is NOT a guarantee of safety. A phone cannot see drones without Remote ID, cameras that only record to an SD card, cellular/GPS trackers, or most hidden devices. Signal-strength distance and direction are rough estimates, and walls bend them. Android limits how often Wi-Fi can be scanned and needs the Location switch on (N0RMA does not read, save or send your location). Some phones stop background apps to save battery.

PRIVACY
Everything stays on the phone. There is no internet permission. The camera permission is used only by the Lens finder, only while it is open: pictures are analysed in memory and thrown away, never saved or sent. History is deleted after 30 days, and you can delete everything with one tap. Drone operator positions are shown live and never saved. The optional address search for your home uses Android's own lookup service; GPS and typed coordinates send nothing.

SAFETY
If you find something you do not own, leave it where it is, photograph it, and contact local law enforcement. Never shoot at, jam or interfere with a drone. If you feel unsafe (for example because of a stalker or abusive partner), contact local police or a hotline; in the US, the National Domestic Violence Hotline is 1-800-799-7233.

Detect-only: N0RMA never jams, spoofs or transmits. Free and open source (MIT).

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 0.7.0 (9) suggested Added on Oct 25, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • access Bluetooth settings
      Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.
    • discover and pair nearby Bluetooth devices
      Allows the app to discover and pair nearby Bluetooth devices
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • connect and disconnect from Wi-Fi
      Allows the app to connect to and disconnect from Wi-Fi access points and to make changes to device configuration for Wi-Fi networks.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "connectedDevice"
      Allows the app to make use of foreground services with the type "connectedDevice"
    • interact with nearby Wi-Fi devices
      Allows the app to advertise, connect, and determine the relative position of nearby Wi-Fi devices
    • show notifications
      Allows the app to show notifications
    • control vibration
      Allows the app to control the vibrator.
    • io.github.sloppytopp.n0rma.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 1.2 MiB PGP Signature | Build Log