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.

Small bug fixed.