NN666Compute

Keep everyday calculations clear, private, and easy to revisit.

The app provides a focused basic calculator for arithmetic, decimals, parentheses, percentages, signs, backspace, and full expression editing. A live preview helps you check an expression before confirming it, while clear error messages keep invalid input easy to correct.

Scientific tools include powers, square roots, reciprocals, absolute values, trigonometry, natural logarithms, common logarithms, pi, and e. Choose degrees or radians for trigonometric work.

The percent workspace covers three practical relationships: finding a percentage of a number, measuring relative change, and reversing a percentage reduction. Each tool shows its formula so the result is easy to understand.

Save and revisit recent calculations from local history. You can reload an expression for editing, remove individual entries, or clear the full list with confirmation. Preferences include decimal precision, thousands separators, and dark theme.

Everything works offline. Expressions, history, drafts, and preferences remain on your device. There are no accounts, ads, uploads, synchronization, financial recommendations, or claims of professional accuracy.