Sensor Recorder Pro vs Ear Sonar

Sensor Recorder Pro turns your iPhone into a local, offline multi-sensor data recorder for developers, researchers, robotics, SLAM, AR, and AI workflows. Choose between two capture modes: Standard Mode Record wide, ultra-wide, telephoto, and front cameras Capture up to three RGB camera streams, depending on device capability Record LiDAR depth on supported devices Configure resolution, frame rate, exposure, and focus ARKit Mode Record RGB video with timestamp-aligned 6-DoF camera poses Capture ARKit camera intrinsics and tracking metadata Record scene depth on supported LiDAR devices Designed for trajectory visualization, 3D reconstruction, SLAM, VIO, robotics, and spatial AI research Additional sensor streams include: Accelerometer and gyroscope IMU data Magnetometer and barometer data Device motion, attitude, and gravity Core Location data Microphone audio Each recording session produces structured, timestamped files for post-processing, sensor fusion, trajectory analysis, visual-inertial experiments, computer vision, multimodal learning, and research logs. Key Features Standard multi-camera and ARKit recording modes RGB, LiDAR depth, pose, IMU, motion, location, and audio recording Configurable camera resolution, frame rate, exposure, and focus Timestamped records for multi-sensor alignment Local file export for custom processing pipelines Fully offline recording with no cloud dependency Free version supports up to two minutes per recording session One-time upgrade unlocks unlimited recording length Use Cases Robotics and spatial AI data collection AR, SLAM, and visual-inertial odometry experiments 3D reconstruction and camera trajectory analysis Camera, LiDAR, pose, and IMU synchronization Multimodal sensor logging Teaching, research, and rapid prototyping Privacy Sensor Recorder Pro does not upload recorded data to any server. All recordings remain locally on your device and are managed or exported by you.

Ear Sonar is an accessibility app that helps people who are blind or have low vision sense nearby space. It uses the iPhone’s rear LiDAR to scan what’s ahead, then turns that depth into spatial audio—or haptics—so you can “hear” the environment. What you can hear • Distance: nearer sounds arrive sooner, denser, or higher in pitch; farther sounds are sparser and lower • Direction: binaural spatial audio places objects to your left or right • Shape cues: flat walls, slopes, and gaps create distinct sonic rhythms Four sensing modes • Echolocation: row-by-row pings outline space like sonar returns • Pitch sonar: a rising scan line encodes distance as pitch in real time • Continuous sonar: a fixed center line for a live depth profile while you walk • Haptic sonar: vibration timing encodes distance—no headphones required Semantic markers Optionally detect people, vehicles, dogs, chairs, tables, doors, and more, then announce them in stereo from their real-world direction. All processing stays on device; nothing is uploaded. Tips • Stereo headphones are recommended (Apple headphones with head tracking and spatial audio work best); haptic mode can be used without headphones • Full VoiceOver support, including gestures and the rotor • Requires an iPhone with LiDAR (iPhone 12 Pro and later Pro models) • This is an assistive tool—not a replacement for a cane, guide dog, or your own judgment when traveling Open the app and start hearing space. Camera preview is on by default so sighted helpers can see what’s being scanned. To keep the experience focused, the app intentionally avoids UI that isn’t essential to core sensing. Questions or suggestions: ninerwong@outlook.com