Jitsuhiro - True Floor Area
True area, not listed size
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
That 6.0-jo room—how big really? Subtract columns for the true usable (inner) area vs the catalog (wall-center) size. Check clearance. Try a sample. Offline.
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
App interface and App Store content now available in 11 languages.
The developer, YANGLI CHEN, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- YANGLI CHEN
- Size
- 1.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 11 more
- English, Arabic, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- ジツヒロ プレミアム（無制限解析） $5.99
- Copyright
- © 2026 CHEN YANGLI