Loxley Calculator

A calculator that does the math and nothing else. Five pages in one app: basic, scientific, graphing, programmer, and date. It works offline, asks for no permissions, and never watches what you do.

The pages sit as plain tabs along the top. Tap one, or keep the app on the page you use most; it opens where you left off. Turn the phone sideways and every page lays itself out wide, with the keys beside the display.

Basic is for everyday math, done properly. Type the whole line, brackets and all, and the answer shows live above the keys before you press equals: 2 + 3 × 4 gives 14, the way it should. It runs on exact decimal arithmetic, so 0.1 plus 0.2 comes out as exactly 0.3. Numbers show with thousands separators. Memory keys (MC, MR, M+, M−) and an ANS key for the last answer. Long-press the answer to copy it, long-press the entry line to paste one in.

Scientific gives you the full keypad. Trig with INV for inverses and HYP for hyperbolics, a DEG/RAD toggle, logs, roots, powers, factorial, exp, pi, e, nCr and nPr, EE for exponents, modulo, and brackets. The result updates as you type.

Graphing plots y = f(x). Type a function and the curve is drawn with labeled axes and a grid that scales as you move. Pinch to zoom, drag to pan, tap the curve to read an exact x and y, and reset the view with one button.

Programmer works in hex, decimal, octal, and binary, 64-bit. AND, OR, XOR, NOT, shifts, and MOD, with the answer shown in all four bases at once. Switch base and the number is rewritten in the new one.

Date answers the two questions people actually ask: how many days between two dates (with weeks, months, and weekdays), and what date is N days, weeks, months, or years from a given one.

Basic and scientific keep a tape of past calculations above the keys. Scroll back, tap one to bring it back, or remove a single entry with its trash icon. The tape is saved on your device.

WHAT YOU GET
• Basic with brackets, precedence, exact decimals, separators, memory keys, and ANS
• Copy the answer or paste an expression with a long press
• Scientific with trig, inverse and hyperbolic trig, logs, roots, powers, factorial, nCr, nPr, EE, and constants
• Live results as you type
• Graphing with labeled axes, an auto-scaling grid, pinch-zoom, pan, and tap-to-trace
• Programmer page: hex, decimal, octal, binary, bitwise operators, shifts
• Date page: days between dates and date arithmetic
• A saved tape you can scroll, recall, or delete entry by entry
• Landscape layouts on every page, a light haptic tick on each key
• Works offline

THE LOXLEY PROMISE
• No ads, ever
• No tracking, no analytics, no accounts
• No permissions requested
• Free, and yours to keep

Loxley Labs makes simple tools the old way: something that does one job well, then stops. Buy it once, own it forever. No subscriptions, no terms that change after the sale.

Questions? [email protected]