BinHex

BinHex puts the calculators you actually use in one fast, private app. CALCULATOR • The whole expression stays on screen, so you can check what you typed. • Exact decimals: 0.1 + 0.2 = 0.3. Press "=" again to repeat the last operation. • Scientific functions that hide behind f(x) when you don't need them. PROGRAMMER • Type in HEX, DEC, OCT, BIN or ASCII and see every base at once. • AND, OR, XOR, NOT, shifts and rotations, with C precedence and parentheses. • 8, 16, 32 and 64-bit words, signed or unsigned, with overflow warnings. Tap any bit to flip it. • Text ↔ bytes: UTF-8, hex, binary, decimal and Base64. UNITS & CURRENCY • Currency converter with daily rates for 160 currencies; keeps working offline with the last rates. • 12 unit categories, completely offline. • Ohm’s law: enter any two of volts, amps, ohms or watts (with prefixes like 4.7k) and get the rest. • kVA, kW, amps and HP for DC, single phase and three phase. SHOPPING • Tip: pick a percentage and split it, with no rounding. • Discount: price, % off, quantity and sales tax — see exactly what you pay. • Cart: scan or type each price while you shop and watch the total with tax. • Sales tax for your area with one tap (approximate; you can correct it and BinHex remembers it). MODEL MY PAY (optional, turn it on in Settings) • Hourly or salary, overtime at 1.5× and 2×, and an estimate of your take-home pay with 2026 federal, Social Security, Medicare and California taxes. • Calibrate it with your paystub or W-2 so it matches your real checks. • Protected with Face ID. It stays on your phone. HISTORY & CAMERA • Everything you calculate is saved on your phone. Tap an entry to pick it back up. • Point the camera at a number, a price or a receipt total and BinHex reads it (iPhone XS or newer). No ads. No account. Your data stays on your phone.