Fin Calc

Fin Calc is a straightforward decimal calculator for everyday and financial calculations. Enter an expression, review your calculation tape, and tap a past result to use its full precision in another calculation. CALCULATE WITH DECIMALS Use addition, subtraction, multiplication, division, powers, parentheses, and base-10 logarithms. Decimal arithmetic avoids familiar binary floating-point surprises such as 0.1 + 0.2. The calculation engine uses 28 significant digits. KEEP A USEFUL HISTORY Your calculation history and settings stay on your device between sessions. Tap a saved result to reuse it, choose how many entries to retain, or clear the tape. Export your history as a CSV file to a location you choose. CHOOSE YOUR DISPLAY Select full precision or 0–6 displayed decimal places, and choose a light or dark theme. Display rounding does not change stored results. Portrait and landscape layouts keep the tape and keypad accessible. LOCAL AND SIMPLE No account, advertising, or analytics. Calculation history is stored locally and is not sent to Plain Text Office. Export important history before uninstalling or clearing app data. Fin Calc is free and open source under the MIT License.

Adds Premium DCF calculator (subscription).