Distance Meter - AR Ruler

What's New

[ Version 2.2.0 ]
- Applied SMARTWHO official unified design
- Refined UI/UX for a smoother experience
- Upgraded AR distance measuring engine
- Improved Height / Length / Area measurement
- Enhanced accuracy of other measuring tools

About This App

Distance Meter is a complete measurement toolkit with AR distance measuring and 9 professional tools — all in one app. Powered by Google ARCore, the app detects your device\'s hardware and selects the best measurement engine for maximum accuracy.

Whether you\'re leveling a shelf, measuring room dimensions, or checking angles, Distance Meter has the right tool for every job.


[9 Measurement Tools]

Distance Meter goes far beyond a simple ruler. It includes 9 specialized tools:

• Bubble Level — Circular spirit level with realistic 3D liquid and bubble animation. Check if surfaces are perfectly horizontal.

• Clinometer — Slope and angle gauge measuring 0° to 90°. Ideal for roofs, ramps, and terrain slopes.

• Plumb Bob — Digital plumb bob with gravity-based pendulum. Verify perfect vertical alignment.

• Protractor — Touch and sensor-based angle measurement from 0° to 180°. Measure angles between objects or surfaces.

• Screen Ruler — On-screen ruler in centimeters and inches. Measure small objects directly on your phone screen.

• Frame Checker — Camera-based frame alignment tool. Check if picture frames, TVs, and shelves are perfectly level.

• Height Meter — AR-powered height measurement. Measure the height of people, furniture, doors, and buildings.

• Width & Height — AR dimension measurement. Get both width and height of objects in a single session.

• Area Calculator — AR multi-point area calculation. Mark corners to calculate floor area, wall space, or any surface.


[Smart Measurement Engine — 4-Tier System]

Your device is automatically matched to the best available engine:

• Premium (ToF/LiDAR) — Hardware depth sensors deliver ±2cm accuracy. Ideal for construction and precise work.

• High (Depth API) — Software depth estimation with ±5cm precision. Available on most modern devices.

• Standard (ARCore) — Surface detection and feature tracking with ±10cm accuracy.

• Basic (Camera) — Camera-based estimation for devices without AR support.


[How to Measure]

1. Tap the Measure button or select a tool
2. Point your camera at the target
3. Wait for the green indicator (optimal conditions)
4. Align the crosshair and tap to measure
5. Results display instantly with estimated accuracy (±cm)


[Real-Time Accuracy Feedback]

Distance Meter monitors 5 conditions in real time:

• Tracking status — Is ARCore actively tracking?
• Lighting — Is the scene well-lit?
• Surface detection — Has a surface been found?
• Feature points — Are enough visual features visible?
• Camera stability — Is the device steady?


[Multi-Strategy Fusion Technology]

This AR ruler combines results from multiple measurement strategies (Depth, Plane, Point Cloud) using confidence-weighted fusion, eliminating outliers and improving accuracy by up to 30%.


[Key Features]

• 9 measurement tools in one app
• 4-tier AR engine (ToF/LiDAR → Depth API → ARCore → Basic)
• 6 units: meters, centimeters, feet, inches, yards, millimeters
• Auto-save measurements to history
• Sound and vibration feedback
• Grid overlay and level indicators
• Dark and light mode support
• Status bar shortcut for quick access


[Tips for Best Results]

• Ensure good lighting (avoid very dark or very bright conditions)
• Move your device slowly during initialization
• Keep a steady hand — stability directly affects accuracy
• Measure textured surfaces (avoid mirrors, glass, solid white walls)
• Optimal AR range: 0.5m to 5m


Your feedback helps us improve. Please leave a review!


[Disclaimer]

Measurement results are estimates based on AR technology and device sensors. Actual distances may vary depending on device, environment, and conditions. This app is not intended for professional surveying or safety-critical applications.

How to Download Distance Meter - AR Ruler APK

1. Enter the package name com.smartwho.smartdistance on the APK Downloader.
2. Select your device architecture (ARM64 recommended for modern devices).
3. Click Download to get the merged APK file.
4. Transfer and install the APK on your Android device.
5. Keep Updated: Visit APKDER.COM regularly to search for and download the latest secure versions of your favorite apps.