Jewels Cube

Jewels Cube is an offline-first shipping carton cube workbench for warehouse packers, small ecommerce sellers, freight clerks, and fulfillment leads who must turn length × width × height into usable cubic size before a box hits the tape gun. Cold start opens the fullscreen cube calculator card: three oversized dimension fields (L, W, H), a live cubic result badge, unit chips, and a one-tap Save-to-stack action. Below the card sits a scrollable stack of named saved cartons for quick re-use and pack comparisons—not a generic catalog or notes app. TYPE THREE SIDES, SEE CUBE INSTANTLY Enter length, width, and height on large numeric fields and get an immediate length × width × height result. Switch units with chips (in, ft, cm, m) and watch the cubic badge convert live to in³, ft³, cm³, or m³. No spreadsheet. No network required. FLOOR-READY SAVED CARTON STACK Save a carton with a name and optional SKU or label; dimensions and computed cube lock into local storage. Browse volume chips, sort by newest or by cubic size, swipe to delete, and open any item in the carton detail editor to revise dimensions or label with auto-recomputed cube. COMPARE AND BUILD OUTBOUND LOADS Compare two or three saved cartons side by side with delta volume callouts. Multi-select cartons into a pack list that sums total cubic for a single outbound load. Load seeded common-box presets (such as 6×6×6, 10×8×6, 12×12×12, or a large shipper) into the calculator in one tap. BUILT FOR THE PACK BENCH • DataStore preferences for default unit, decimal precision, and stack sort order • Share a plain-text carton summary (name, L×W×H, cube) via the system share sheet—no special permissions • Offline-first local storage so packing decisions stay on the floor and spreadsheet-free CartonCube keeps real carton specs at your fingertips: type three sides, see cubic size instantly, and keep a stack you can reuse, compare, and total when the tape gun is waiting.

New icon and a short animated opening for Jewels Cube. The bench, saved cartons, pack list, and side-by-side compare are easier to read.