Depth Views
Use the camera view, depth heatmap, and point cloud mode to understand which surface the center point is sampling.
View depth modesSupport Center
Measure distance with LiDAR, confidence, and context.
LiDAR Measure is a native iPhone and iPad app for quick distance measurement using ARKit scene depth. This page covers device requirements, permissions, saved history, troubleshooting, and privacy.
- Devices
- LiDAR iPhone Pro / iPad Pro
- Minimum OS
- iOS / iPadOS 14
- Core Features
- Distance / Depth view / History
Measurement Quality
Lighting, reflective surfaces, distance, camera motion, and confidence filtering can affect the current reading.
Improve readingsPrivacy & Storage
Measurements, notes, settings, and snapshots are stored locally on your device unless you choose to email support.
Read privacy noticeDepth Views
Use depth views to understand what is being sampled
LiDAR Measure uses ARKit world tracking with scene depth and smoothed scene depth. Switch between the camera view, depth heatmap, and point cloud view when you need to understand the target surface before saving a measurement.
- Grant camera permission so the app can show the live view and read depth data.
- Move slowly and keep the target inside the center crosshair until the reading stabilizes.
- Use depth heatmap or point cloud mode when you need to understand the surface being sampled.
History
Review saved measurements and snapshots
Saved records keep the measured distance, quality label, angle reference, optional note, and visual snapshots together. You can review recent measurements locally and clear history when you no longer need it.
- History is stored locally on your device.
- Saved snapshots help you remember where the center point was aimed.
- Annotated snapshots can be saved to Photos only when you choose that action.
FAQ
Frequently asked questions
Why does the app say LiDAR scene depth is unavailable?
The app needs a physical iPhone or iPad with a LiDAR scanner. It also needs camera permission. If you are using a simulator, a non-Pro iPhone, or a device without LiDAR, depth measurement cannot start.
How can I get a steadier measurement?
Hold the device steady, keep the target near the center crosshair, avoid glass or mirror-like surfaces, and try a larger sample window or stability-first preference in Settings. Better lighting can also improve AR tracking.
What do the quality labels mean?
Quality is based on the available depth samples around the crosshair and their confidence. A low quality label means the app had fewer usable depth samples, so you should re-aim, move closer, or change the surface.
Where are saved measurements stored?
Saved distance records, notes, settings, and measurement snapshots are stored locally on your device. History is capped to keep storage reasonable, and you can clear it from the History screen.
Can I use readings for construction, medical, or safety-critical work?
LiDAR Measure is a quick reference tool, not a certified measuring instrument. For construction, medical, legal, safety, or other important decisions, verify results with calibrated equipment and qualified professionals.
Privacy
Local-first measurement data
LiDAR Measure does not use advertising SDKs, analytics SDKs, or cross-app or cross-website tracking. The app uses camera, motion sensors, optional photo library add permission, local storage, and system speech playback to provide its features.
Contact
Contact technical support
When reporting an issue, include your device model, iOS or iPadOS version, LiDAR Measure version, whether camera permission is enabled, and steps to reproduce. Please avoid sending private photos, addresses, or sensitive measurement notes unless they are necessary.
Send Email
xxyyyue@gmail.com