Enter the job size and your own prices. You get sheet count, mud, tape, screws, labor, and a quote you can text or print. Nothing is saved or sent anywhere.
Material quantities use common industry rules of thumb (about 370 ft of tape, 140 lb of ready-mix compound, and 1,000 screws per 1,000 sq ft of board at Level 4 finish; one 4.5 gal box is about 61 lb). Real jobs vary, so check against your own numbers.