CalculationBook

CalculationBook is an easy-to-use calculator that shows formulas to prevent input mistakes. It supports a history for quick edits and re-calculation, a totalization bar for totals, and sheet management to stay organized.

It also offers formula references, named formulas for clarity, a scientific calculator view, a summarize bar for totals and statistics, and customizable function buttons. You can swipe to copy or delete entries, refer to previous results, and update linked calculations automatically.