Lu Ban Ruler - Feng Shui
Feng Shui Measuring Tool
About
This professional tool applies ancient principles to measure furniture, houses, and graves for auspicious placement. It offers high accuracy and works offline, supporting multiple units for precise application.
What's New in Lu Ban Ruler
1.5
July 4, 2026
This update makes measuring with the Luban ruler faster and more accurate: • Auspicious size suggestions: when a measurement lands on an inauspicious segment, the app instantly tells you how many mm to add or subtract to reach the nearest auspicious one. • Edge-to-edge ruler with a wider, clearer layout and larger result text. • Haptic alert when a measurement crosses into an inauspicious zone — no need to look at the screen. • New quick-adjust buttons (−1mm / +1mm) and a reset-to-zero button. • Easier number entry (comma support and number pad). • Sharper dark mode and a layout optimized for iPad. • Reviewed and refined the feng shui terminology across all three languages. • Brand-new app icon. • Various bug fixes and stability improvements. Thank you for using Luban Ruler!
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FAQ
What types of measurements can Lu Ban Ruler be used for?
Lu Ban Ruler offers three specialized rulers: the Door Ruler for furniture, the Yang House Ruler for buildings, and the Yin House Ruler for graves and funeral arrangements.
Does Lu Ban Ruler require an internet connection to function?
No, Lu Ban Ruler is designed to work completely offline, meaning you do not need an internet connection to use its measuring features.
What units of measurement does Lu Ban Ruler support?
The app supports multiple units of measurement, including centimeters (cm), millimeters (mm), and meters, providing flexibility for various measurement needs.
Is Lu Ban Ruler free to use?
Yes, Lu Ban Ruler is completely free to download and use. It does not have any associated costs or in-app purchases.
Does Lu Ban Ruler contain advertisements?
No, Lu Ban Ruler is ad-free. Users can utilize all its features without encountering any advertisements.
What is the accuracy of the measurements provided by Lu Ban Ruler?
The app is designed for high accuracy, applying the ancient principles of Master Lu Ban to ensure precise measurements for Feng Shui applications.
What devices is Lu Ban Ruler compatible with?
Lu Ban Ruler is compatible with iPhones, iPads, and iPods, making it accessible to a wide range of Apple device users.
How often is Lu Ban Ruler updated?
The latest version of Lu Ban Ruler is 1.4, and it was last updated on January 20, 2026. This indicates a commitment to ongoing development and improvements.
