Lu Ban Ruler - Feng Shui
鲁班尺风水
Lu Ban Ruler - Feng Shui is #37 in Developer Tools Paid in China and charting in 1 of 24 countries we track.
DeveloperManh Nguyen
CategoryDeveloper Tools
Price38.00 CNY
Released
Rating★ 3.5 (2)
Version1.6
Age rating4+
First charted🇨🇳 25 Sep 2026
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| 🇨🇳 China | Developer ToolsPaid | #37 |
Members see more
Sign inEstimated downloads and revenue, ratings momentum, rank history, recent reviews per country and breakout scores for Lu Ban Ruler - Feng Shui.
About Lu Ban Ruler - Feng Shui
LUBAN RULER – The feng shui ruler in your pocket
The Luban ruler is essential when building doors, gates, altars, beds, cabinets or stairs. This app instantly tells you whether a measurement falls on a LUCKY or UNLUCKY segment, and suggests the nearest auspicious size — anytime, anywhere.
ALL THREE RULERS INCLUDED
• Clear Opening (52.2cm) – for the clear opening of doors and gates
• Yang Dwelling (42.9cm) – for stoves, beds, tables and furniture
• Yin Dwelling / Ding Lan (38.8cm) – for altars, shrines and graves
KEY FEATURES
• See the result of all three rulers at once
• Drag the ruler or type a measurement directly (mm/inch)
• Auspicious size suggestions: on an unlucky mark, the app tells you exactly how many mm to add or subtract to reach the nearest lucky one
• Haptic alert when a measurement crosses into an unlucky zone – measure without looking
• Quick-adjust buttons (−1mm / +1mm) and reset-to-zero
• Plain-language meaning for every segment
• Three languages: Vietnamese, English, Chinese
• Light & Dark mode
• Optimized for both iPhone and iPad
WHO IS IT FOR?
• Carpenters, builders and contractors
• Homeowners renovating, building or setting up an altar
• Anyone interested in feng shui
Works fully offline. No account required.
Download now so every dimension in your home is in harmony!
The Luban ruler is essential when building doors, gates, altars, beds, cabinets or stairs. This app instantly tells you whether a measurement falls on a LUCKY or UNLUCKY segment, and suggests the nearest auspicious size — anytime, anywhere.
ALL THREE RULERS INCLUDED
• Clear Opening (52.2cm) – for the clear opening of doors and gates
• Yang Dwelling (42.9cm) – for stoves, beds, tables and furniture
• Yin Dwelling / Ding Lan (38.8cm) – for altars, shrines and graves
KEY FEATURES
• See the result of all three rulers at once
• Drag the ruler or type a measurement directly (mm/inch)
• Auspicious size suggestions: on an unlucky mark, the app tells you exactly how many mm to add or subtract to reach the nearest lucky one
• Haptic alert when a measurement crosses into an unlucky zone – measure without looking
• Quick-adjust buttons (−1mm / +1mm) and reset-to-zero
• Plain-language meaning for every segment
• Three languages: Vietnamese, English, Chinese
• Light & Dark mode
• Optimized for both iPhone and iPad
WHO IS IT FOR?
• Carpenters, builders and contractors
• Homeowners renovating, building or setting up an altar
• Anyone interested in feng shui
Works fully offline. No account required.
Download now so every dimension in your home is in harmony!
Latest updates
1.6
Meet Classic Luban, a fourth ruler for doors and gates. Choose which rulers appear and explore the rewritten User Guide.
NEW
• Classic Luban (46.08 cm): the Ming-Qing Luban ruler for the clear opening of doors and gates. Same sections, meanings, and Good/Bad markings as Yang Dwelling (42.9 cm), but a longer cycle, so a size can be Good on one and Bad on the other. Off by default; turn it on in Visible Rulers.
• Visible Rulers: show 1 to 4 rulers and drag the ≡ handle to reorder them. Your choice is saved. To open it, tap the sliders button next to “cm”, tap a ruler’s name in the left column, or use the side menu.
IMPROVED
• Rewritten User Guide: real screenshots in your language showing every button, a card per ruler with Good ranges and examples, and two illustrations comparing how to measure doors versus furniture and altars. Tap a picture to enlarge it.
• Redesigned side menu with LANGUAGE (VN / EN / CN) and HAPTICS at the bottom.
• Updated for iOS 27.
FIXED
• Typing a large size (e.g., 9000 mm) or tapping 0 to jump back to the start now lands the ruler exactly, and every ruler shows the correct result.
• Tapping “Luban Ruler” in the side menu while on the ruler screen no longer resets your measurement.
• Yang Dwelling (42.9 cm): the first sub-section of Separation is now named Long Confinement (formerly Chronic Illness), as in the Lu Ban Jing. It’s still Bad, so results are unchanged.
