CalculatorPro vs Minimum Calc

Your system calculator says 0.1 + 0.2 = 0.30000000000000004. CalculatorPro doesn't. Arithmetic runs on exact rational numbers, not floating point. 1 ÷ 3 × 3 is 1. 19.99 × 3 is 59.97. Results that must be approximate — trig, logarithms — are marked with ≈, so you always know which numbers you can copy into a contract. — Accurate • Arithmetic, integer powers and decimals: zero error • 1 ÷ 3 shows its repeating digits with an overline, not a string of 333333 • sin(30°) = 0.5 and sin(180°) = 0, not 1.22e-16 • log(100) = 2 (many calculators give you the natural log, 4.605) • 200 + 10% = 220, not 200.1 — Calculates as you type • Live results — no need to press equals • Parentheses, backspace and percent at hand; edit the expression any time • Errors underline the exact fragment at fault and explain in plain language — Nothing gets lost • Every calculation is kept, with full-text search that stays instant across thousands of entries • Notes, pinning, and export to CSV / JSON / Markdown • History stores exact values — reload one in three years and no precision is lost — Two keypads, swipe to switch • Basic: a superset of the system calculator — parentheses, backspace, correct percentages • Scientific: trig, hyperbolics, logs, roots, factorials, modulo, DEG·RAD·GRAD — Also • 20 themes; light and dark are chosen independently, including Blueprint, Terminal, Receipt and Neon • Distinct haptics for digits, operators and equals • Full hardware keyboard mapping; split layout in landscape on iPad • Complete VoiceOver support and Dynamic Type — Privacy No data collected. No account, no network, no analytics. History never leaves your device. No in-app purchases, no subscription, no ads.

This is a useful calculator application with a variety of special functions such as history display, save, swipe to clear, and switch between calculation modes. There are 10 colors and 68 fonts to choose from. It also supports split view and slide-over, so it is recommended not only for iPhone users but also for iPad users. The basic specifications are as follows. [ Calculation Function ] - The number of decimal places is from 0 to 20 - Selectable rounding off, rounding up or down - Changing thousands separator and decimal symbol - Saving calculation history and reusing of history results - Approximate value representation - Percentage (%) calculation - Deletion of character and block units - Switching between calculation modes [ Appearance ] - Selectable from 10 types of colors - Selectable from 68 character fonts - Change of various display options [ Others ] - iPad split view/slide-over support - Dark mode support - Haptic feedback ON / OFF - Key sound ON / OFF