New: gradual proximity haptic. • In the warning zone you now feel a vibration that grows stronger and faster as you get closer to an obstacle: light when it's far, firm when you're near the stop distance. Especially useful in crowded places. • New "Proximity Haptic" toggle to turn it on or off as you like, without affecting the stop, frontal-obstacle, and drop-off alerts. Thanks to everyone sending in suggestions — keep them coming!

Thanks to your feedback, this update makes Sonar safer and easier to use: • The screen no longer auto-locks while scanning — navigate without the phone going to sleep. • Much better detection of low obstacles (sofas, benches, low furniture), with new dedicated controls. • Greatly improved detection of steps and drop-offs. • Wider vertical field of view. • Redesigned Settings: only the essentials up front, everything else tucked into "Advanced Settings." • Clearer labels and an updated in-app guide. Tip: open Settings and tap "Reset" to load the new recommended defaults.

• Cliff Detection: The app now actively protects you by detecting sudden drops (stairs, edges, uneven ground) with a dedicated alarm sound. • New Posture Guide: A smart audio assistant helps you hold the phone at the optimal tilt (35°-82°) for perfect LiDAR scanning. A high-pitched sound confirms the correct position, while a low tone warns you if you are aiming too high or low. • Integrated User Manual: We added a complete guide accessible directly from Home, with instructions on how to hold the device and understand the sounds. • Night Vision: Reintroduced and optimized visual mode that displays the real-time depth map, allowing you to "see" in total darkness. • Advanced Settings: The menu has been redesigned. You can now calibrate Scenarios (Indoor/Nature), Low Obstacle sensitivity, and customize the audio rhythm. • Enhanced Safety & Audio: New seamless audio mixing system. We also increased the default STOP distance to 0.8m and made the "smoothing" filter more responsive to sudden obstacles.

What’s new: • Significantly improved LiDAR accuracy • More robust spatial sampling (windowed median) to reduce noise and outliers. • Temporal smoothing for distances and direction to minimize jitter and stabilize state changes. • Hysteresis and persistence for “STOP”, “Narrow Passage”, and “VOID!” to avoid false positives. • Better low-obstacle detection • New adjustable threshold to detect low objects like sofas and coffee tables. • More reliable “Narrow Passage” and “VOID!” detection • Multi-sample analysis and multi-frame persistence to reduce false alerts. • More informative audio • New non-linear curve for beep cadence: faster when close, slower when far. • Smoother and more accurate audio panning to indicate obstacle direction. • Advanced settings • New sliders to tune: smoothing, sampling window size, STOP hysteresis, “Narrow Passage” thresholds, detection persistence, and beep curve parameters. • Various optimizations and fixes • Improved overall stability and reduced reading oscillations. Tip: if the app detects too many or too few low obstacles, adjust the “Low Obstacles Threshold” in Settings to match your environment.

In this update we introduced: • Cliff Detection: The app now alerts you with a distinct high-pitched alarm if it detects a sudden drop ahead (like stairs or edges), helping you avoid falls. • Adjustable Sensitivity: New option in Settings to calibrate the drop detection distance. • Improvements: Cliff Detection is now enabled by default to ensure maximum protection from the very first launch. • Minor optimizations to the scanning algorithm.