Cover Wrap Calc2026 app analytics for October 21

Cover Wrap Calc is an offline sizing and cutting calculator for book cover film and protective wraps. Enter book width, height, spine thickness, and fold margins to generate a clear cutting plan for one book or a whole batch. The app includes cover film size calculation, common book templates, custom templates, batch cutting lists, material total and leftover estimates, fold margin checks, spine thickness warnings, and local plan storage. No login or internet connection is required. All book records and wrapping plans stay on the device. The app does not collect, upload, or share user data.