Jitsuhiro - True Floor Area

About

Import a floor plan and calculate the true net usable area after subtracting columns and structural walls. Visualize how the listed "6.0 jo" room actually measures up once pillars eat into the space. ■ Features · Import floor plans from PDF, photo library, or camera (auto-corrects perspective distortion) · Set real-world scale by tapping two points on a dimension line · Auto-detect pillar candidates, confirm/adjust, then calculate net area and jo difference · Place furniture on the scaled plan to verify clearance and traffic flow before moving in · Export result cards and layout diagrams as images to share · See a whole-property summary (totals in jo / m² / tsubo) and share result cards as images · No floor plan? Tap "Try a sample" to experience analysis and furniture layout instantly ■ Wall-center vs. inner area Japanese condo brochures usually list size to the center of walls and columns ("kabe-shin"), while the space you can actually use is closer to the inside of the walls ("uchi-nori"). This app's net usable area subtracts columns from the drawing's interior — an inner-area-leaning estimate. ■ Privacy & Offline · All calculations run on-device. No floor plan or measurement data is sent externally (no account required) · Works fully in Airplane Mode · One-time purchase (no subscription). Analyze 1 property free; purchase to remove the limit ■ Disclaimer · Results are estimates derived from the floor plan. Always verify dimensions and area with official documents and physical measurements. · This app does not recommend or solicit purchase of any specific property. · Clearance thresholds are general residential design guidelines, not safety or legal standards. · Designed for clean condo plans with dimension lines in mm. Plans without dimensions cannot be scaled.