Xia's Calc

Xia's Calc is a paper-tape calculator that keeps complete expressions, results, and notes together. Review every calculation on a continuous tape, tap any result to copy it, and add notes when context matters. Select a range for a subtotal, or add a total for the whole tape. Save important tapes as pages, recover deleted pages from Trash, and export a local JSON backup whenever you choose. Use the full-width compact keypad, choose from six visual themes, and optionally use seven-segment digits. Xia's Calc works offline with no advertising, subscriptions, accounts, analytics, or data collection. Your calculations stay on your device unless you explicitly copy them or export a backup.