Android Sensors

Your phone has sensors most apps never touch. Android Sensors puts all of them to work.

Five tools. One app. No ads. No subscriptions.

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🔍 METAL DETECTOR

Point and scan. A sonar radar sweeps in real time, with a signal bar that shifts from cyan to red as magnetic intensity rises. Simple mode shows deviation from your calibrated baseline — great for finding hidden pipes, wall studs, or buried metal. Raw mode displays the full magnetic field strength in µTesla for deeper analysis. Auto-calibrates on launch; one tap to recalibrate any time.

⚖️ GRAVITY METER

A live 3D sphere tilts and rotates with your phone, showing how gravitational force is split across X, Y, and Z axes in m/s². An oscilloscope traces the signal history in real time, and the app automatically identifies your orientation — portrait, landscape, face up, face down. Total G-force magnitude is always on screen.

📐 BUBBLE LEVEL

Three sensitivity modes — Precision (±0.5°), Standard (±2°), Rough (±5°) — so you dial in the accuracy the job actually needs. The target reticle turns green and sends a haptic pulse the moment the surface is level. Pitch and roll angles are shown as live HUD cards. Precise enough for carpentry; simple enough for hanging a picture frame.

🪐 SPACE BALL

Tilt your phone and a glowing ball rolls across the screen, driven by real gravity sensor data — velocity, friction, edge bouncing with dampening. Drag and flick to throw it. Sparkle particles burst on impact, haptic feedback pulses through your hand, and 80 background stars drift in parallax behind it all. The most intuitive way to feel what a gravity sensor actually does.

📶 WI-FI PULSE — NEW

Internet down? Stop checking your phone. Tap "Notify me when it is back" and put it down. Wi-Fi Pulse waits until the internet really works — not just until the router reconnects — then rings (even on silent) or sends a notification, and tells you how long you waited. It watches Wi-Fi when Wi-Fi is on and mobile data when it is off. Live status shows whether you are online, connected without internet, or disconnected, with signal strength in dBm using the same levels as your status bar. Turn the alert on from the Quick Settings tile without opening the app.

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WHY ANDROID SENSORS

✦ Completely free — no ads, no subscriptions, no paywalls
✦ Works offline — the sensor tools need no internet connection
✦ Minimal permissions — the sensor tools need none; Wi-Fi Pulse asks for notifications only when you turn its alert on, and never reads your location or what you do online
✦ Sensor fallbacks built in — adapts to hardware differences across devices
✦ Every tool includes a science explainer so you understand what you're measuring
✦ Haptic feedback throughout for a tactile, responsive feel
✦ Dark immersive interface designed to feel as good as it works

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Built for DIY enthusiasts, students, construction professionals, anyone tired of waiting for the internet to come back, and anyone curious about what their phone is really capable of.

Download free. No strings attached.