Curtain Calc Pro vs Cordwise

Curtain Calc uses a geometric coverage model to calculate how effectively a curtain panel blocks light from a given window. CALCULATION MODEL The engine computes direct-cover area minus an edge-leak penalty. The penalty is derived from the difference between the curtain's actual overlap and the user's target overlap on both side edges and the top. The result is a dimensionless coverage ratio (0–1), displayed as a percentage. INPUT PARAMETERS • Window width & height (cm) • Curtain panel width & height (cm) • Desired side overlap (cm, each side) • Desired top overlap (cm) OUTPUT • Coverage percentage with color-coded rating • Recommendation: whether curtain width or height needs to increase HISTORY & RE-USE Calculations are persisted via UserDefaults. Each record can be named, browsed in a list, and reloaded into the calculator as a prefill. LOCALIZATION English and Simplified Chinese, runtime-switchable without restart. PRIVACY Zero network activity. Zero data collection. No third-party SDKs.

Put two firewood quotes on the same volume basis, including entered delivery fees, and compare them with your own measured history. HOW IT WORKS 1. Open Measure and tap Compare quotes. 2. Enter standard cords, wood price and delivery fee for each quote in the same currency. 3. Inspect the price per cord, weighted historical baseline and shared comparison. Quotes are saved on this device. Pile measurement, inventory, winter planning, burn logs and reference material remain available. WHAT TO KNOW A standard cord is 128 cubic feet of stacked wood. Undefined truckloads and face cords are not equivalent units. Species, moisture, stacking, taxes and extra fees affect value; enter applicable charges yourself. This is price arithmetic, not a seller rating or a purchase action. iPhone and iPad.