NaCross - 壁紙糊付け最適化
Kouichi Yamaguchi Business iPhoneiPadiPod touch
NaCross - 壁紙糊付け最適化 is a free Business app for iPhone and iPad by Kouichi Yamaguchi. Requires iOS 15.1. Updated August 15, 2026.
- Price
- Free
- on the App Store
- Size
- 30 MB
- Age 4+
- Updated
- Aug 15
- 2026 · v1.2
Screenshots
About NaCross - 壁紙糊付け最適化
NaCross is a wallpaper (cross) installation optimization tool for professionals. Just enter cut dimensions and quantities to automatically calculate the optimal roll allocation that minimizes waste. [Features] Loss minimization calculation Automatically calculates optimal allocation using the FFD (First Fit Decreasing) algorithm. Multiple rolls supported Set multiple rolls with individual length, head loss, and tail loss per roll. Automatically allocates to the next roll when 50m is exceeded. Recommended order quantity Automatically calculates recommended order quantity rounded up to 0.5m increments. Flexible unit selection Supports m, cm, and mm units. Numpad input Large numpad designed for on-site smartphone use.
What’s new
Version 1.2 · Updated August 15, 2026
Review work areas without leaving the calculation screen • A tab strip for your saved work areas now appears below the site name field. Tap a tab to expand that work area and review it right where you are — whatever you are currently entering is never overwritten. • The Edit button in the top right of an expanded card loads that work area into the input form, so you can keep working without changing screens. • The expanded tab is highlighted in dark blue, so you can always tell which work area you are looking at. Clearer navigation • The back button at the top of the calculation screen is now a single full-width blue "← Site list" button, making it easier to tap. • When you open a work area for editing, a "← Back to work area list" button now also appears below the Save button. • The "Go to work area list" button now appears whenever the site name matches a saved site, and your current input is preserved. Other improvements • The default unit of length is now cm instead of mm.
App privacy
The developer, Kouichi Yamaguchi, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data: Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Usage Data: Advertising Data
Used for: Third-Party Advertising, Developer’s Advertising or Marketing
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
- Surroundings: Environment Scanning
Used for: Third-Party Advertising, App Functionality
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