Signal Walk
Signal Walk’s Android closed test is open. Request early access.

Android field instrument

See what your Android phone can observe.

Signal Walk turns nearby wireless activity and phone sensor readings into a clear, timed session you can review, compare, and export—without creating a Signal Walk account.

  • Follow Bluetooth, Wi-Fi, cellular, motion, environmental, and location-quality readings together
  • Save notable changes as an organized session instead of losing the live moment
  • Choose a privacy-conscious export mode before creating a file
Join the closed testSee how it works

No Signal Walk account · Local session storage · User-controlled exports

Signal Walk Live screen showing an active walk capture, nearby signal counts, sensor status, and recent events
  • Passive observationNo joining nearby devices or networks
  • Local-first sessionsSaved captures remain in private app storage
  • Explicit exportsYou choose the file and privacy mode
  • No in-app accountCapture without a Signal Walk login

Turn a walk into a field session

One walk. Three steps.

Available readings depend on your phone, Android version, granted permissions, and surroundings.

  1. Start a capture

    Begin a timed session using wireless and sensor readings supported by your phone.

  2. Take the walk

    Follow readings, status, and notable changes together as the environment changes.

  3. Review or export

    Return to the saved session or create a file using the privacy mode you select.

Core workflow

Keep the live view clear and the details close

Signal Walk gives disconnected measurements a shared timeline without claiming to identify a person, device owner, cause, or threat.

Live

See change while it happens

Follow supported nearby signal counts, motion, environmental readings, location quality, and recent events from one focused screen.

Sessions

Keep the result, not just the moment

Review saved captures, compare different places or times, and delete sessions from the app when you no longer need them.

Export and privacy controls

Choose the level of detail before creating a file

Signal Walk writes an export only when you request one. Use the result in your own spreadsheet, notebook, script, or project archive.

Detailed

More telemetry for a specific technical need while excluded high-risk identifiers remain omitted.

Redacted

Default

Removes identifiers and precise coordinates to reduce exposure when sharing.

Summary only

Counts, labels, and session metadata for the smallest output.

Raw telemetry

Inspect what your phone can provide

Open the deeper view for underlying readings and device-capability details while the primary workflow stays readable.

Widget: supported devices can also show key status and provide a shortcut into capture from the Android home screen.

Home-screen widget

Keep the next capture close

On supported devices, check key status and open Signal Walk from the Android home screen.

Compatibility and permissions

Your phone decides what is available

Readings vary by hardware, Android version, system settings, radio state, granted permissions, and surroundings. A channel remains unavailable when its required hardware, setting, or permission is unavailable.

Online map imagery and on-device AI summaries are optional. AI availability depends on compatible Google-provided on-device support and a successful availability check.

Responsible use

Explore signals, not people.

Signal Walk does not identify people, determine intent, detect threats, establish surveillance, or produce validated forensic evidence. Use it for learning, personal field observation, education, and authorized device or environment testing.

Read the Responsible Use guidance.

Google Play closed test

Try Signal Walk on your Android device.

Run several short field sessions and tell us what worked, what was confusing, and what broke.

Request early access

Contact

Reach Signal Walk directly