Fieldwatch 1.1.31 is out with two big additions. Fieldwatch is a free, open-source Android app that identifies the devices around you, including what might be watching or following you: trackers, cameras, drones (it even decodes their Remote ID), body cams, and more. Over 250 devices, and you can add your own. It listens to nearby Wi-Fi and Bluetooth signals and matches them against a built-in signature database. It only receives, never transmits. No account, no ads, no back end, and it works fully offline. What’s new: Hunt, rebuilt and more useful. Hunt now draws a heat map as you move. Hold the phone out in front of you and walk slowly around the area in a pattern, and the heat map fills in, running from blue where the signal is weak to red where it's strongest. The brightest patch is where the radio was loudest. GPS alone isn't precise enough for this, so Hunt also uses the phone's motion sensors to track your steps between GPS fixes. Live map on the Live screen. Tap the tune icon in the upper right to open Display Options, then turn on Show live path. The screen splits, with a map of your current path on top and your list view underneath, and you can slide the split to show as much map as you want. Alerted radios are plotted on the map. Double-tap to jump between a close-in view and the whole path, tap the compass to switch between north up and heading up, or pinch and drag to move around. More maps. OpenStreetMap and USGS Imagery and Topo work out of the box. You can also add Esri, MapTiler, Stadia and Thunderforest with your own key, which most of them offer free for personal use. Your key stays on your phone and is left out of exported settings. Also new: grid locations on the radio page, a cleaner live path that follows the road through turns, steadier top-bar counts, a crash report screen, and quieter scanning while Location is off. Free and open source on Android. github.com/OffGridPete/Field…

Fieldwatch is a free, open-source Android app that can help identify the devices around you, including what might be watching or following you: trackers, cameras, drones (it even decodes their Remote ID), body cams, and more. It can help identify almost 250 device types, and you can add your own. It listens to nearby Wi-Fi and Bluetooth signals and compares them to a built-in signature database. It only receives, never transmits. No account, no ads, no back end, and it works fully offline. What's new: Fieldwatch 1.1.22 adds GPS jamming and spoofing detection, using the receiver that's already in your phone. 🛰️ When your GPS suddenly changes, Fieldwatch lets you know right away: * A popup with details of the interference * A voice alert * A red diamond on your path where it happened * The details saved in your sit * An optional note on your TAK marker It needs a one-time calibration. Choose your sensitivity and you're set. For best performance, keep the phone in a dash holder, or on your chest rig when you're on foot. Also in this build: weak pairing floods stay quiet while you're driving, and a real flood can leave a note on your TAK marker until it ends. Easier setup: Live now shows a banner when Location is off, and Diagnostics opens with a "What to check" list that names the exact switch that's off. The only official release is on my GitHub, link in bio. Each release lists the APK hash and signing certificate so you can check your build. Coming next: a localization framework. I'm building a proper translation system for Fieldwatch, so translating the app will mean filling in a language file instead of forking the codebase and hand-editing text buried in the code. If you've offered to help translate, thank you, and please hold off for now. Once the framework lands, your work will be much easier and won't break with every update.