Sensor Labs vs Night Event Log

Sensor Labs turns your iPhone into a real-time physics laboratory. Instantly visualize motion, environmental, audio, and location sensors with clean dashboards and precise live data. Whether you are a student, engineer, or simply curious, Sensor Labs helps you explore how your iPhone senses the world around it. LIVE SENSOR MONITORING (13+ SENSORS) Motion Sensors * Accelerometer: Measure X, Y, Z acceleration forces * Gyroscope: Track rotation rate and angular velocity * Device Motion: Sensor fusion with attitude and quaternion data * Bubble Level: Precision spirit level for accurate alignment Magnetic Sensors * Magnetometer: Raw magnetic field values * Metal Detector: Detect hidden metal, pipes, and wires Environmental Sensors * Barometer: Atmospheric pressure and relative altitude * Thermal State: Monitor device temperature conditions * Brightness: Screen brightness monitoring * Proximity: Detect nearby objects Location and Audio * GPS: Location, altitude, speed, and heading * Microphone: Sound level meter with decibel readings, frequency analysis, and spectrum view DESIGNED FOR CLARITY AND SPEED * Real-time updates with no lag * Animated gauges, waveforms, and visualizations * Full-screen immersive sensor views * Swipe navigation between sensors * Customizable dashboard layout * Multiple themes with full dark mode support PERFECT FOR * Students and educators learning physics and motion * Engineers and developers testing sensor-based apps * DIY and home projects including leveling and detection * Science experiments and research * Anyone curious about iPhone hardware SENSOR LABS PRO Upgrade to Sensor Labs Pro to remove ads and unlock the full experience. One-time purchase. No subscriptions. PRIVACY FIRST All sensor data is processed locally on your device. We do not collect, store, or share personal or sensor data. Download Sensor Labs today and discover what your iPhone can really do.

See what changed without reviewing hours of video. Night Event Log turns your iPhone into a private, local event recorder for a room, doorway, hotel room, pet area, luggage, desk, shelf, or other space. Despite its name, the app can be used during the day or at night. While the app remains open in the foreground, it watches for selected changes and saves photos only when a sensor responds. RECORD CHANGES, NOT HOURS OF VIDEO Night Event Log does not continuously record video. It can respond to events such as: * Loud or repeated sounds * Movement, lifting, or rotation of the iPhone * Activity near the proximity sensor * Charging cable disconnection or charging start * A sudden change in brightness * A visible change in the camera scene * A manual test capture The microphone is used only to measure changes in sound level. Audio recordings are not saved. ON-DEVICE AI PHOTO DESCRIPTIONS The main event photo can be analyzed by an image-capable AI model included with the app. * Photo analysis runs on the iPhone * Photos are not uploaded to an external AI server * The AI provides a short description of what appears to be visible * It does not reliably identify people, danger, crime, illness, or medical events AI descriptions may be incorrect, especially when a photo is dark, blurred, incomplete, or partially obstructed. SEE WHAT HAPPENED BEFORE AND AFTER When possible, the app saves up to three photos: * A moment before the event * The main event photo * A moment after the event This provides useful context without creating a long video recording. MODES FOR DIFFERENT SITUATIONS Choose from Automatic, Bedroom, Doorway, Travel & Hotel, Pet, or Custom mode. Each mode adjusts sound, device movement, proximity, brightness, and camera-scene detection for a different use. PRIVATE BY DESIGN Photos and logs are stored locally inside the app. There is no cloud synchronization, remote viewing, or automatic photo upload. You can also: * Protect logs with Face ID or your device passcode * Keep logs for 1, 3, 7, or 30 days * Review events in a chronological timeline * See sensor details and battery information * Mark an event as useful or a false detection * Share or delete individual logs * Receive a scheduled notification when events have been recorded TRY IT FREE, THEN BUY ONCE Use the app free for five days from the first installation. After that, continue with a one-time purchase. No advertising. No subscription. IMPORTANT * Monitoring works only while the app is open in the foreground * The screen remains on with a dark monitoring display * Monitoring stops when the app enters the background * The app does not provide live remote monitoring * It cannot guarantee that every event will be detected or recorded * It is not a complete security system * It does not provide medical, health, sleep, or fall detection * Landscape orientation only * Requires an iPhone with iOS 18 or later Use Night Event Log as a simple way to review meaningful changes around your iPhone while keeping your photos on your device.