Calc Only is a free, ad-free, offline-first calculator app for Android. Fast everyday math and scientific tools without accounts, ads, subscriptions, or tracking. Your calculations stay on your device.

WHY CALC ONLY
• Offline-first Android calculator — works without a login
• No ads, no in-app purchases, no tracking
• Privacy policy you accept (and can revoke) in the app
• Clean olive-and-gold design; portrait-only for a stable keypad
• Theme: System, Dark, or Light

EVERYDAY & SCIENTIFIC CALCULATOR
• Addition, subtraction, multiplication, division, brackets, backspace
• Percent, mod, square root, x², xʸ, x⁻¹, ±
• log, ln, logₓ, sin, cos, tan, cot and inverse trig
• Rounding: nearest, floor, ceil, trunc, 0.00
• Constants: π, e, φ (golden ratio), τ
• Multiline display with calculation history

MODES FOR REAL WORK
• Number bases: DEC, BIN, OCT, HEX
• Angle modes: DEG, RAD, GRAD
• Display: NORM or SCI (scientific notation)

COMPLEX NUMBERS (DECIMAL)
• Enter and compute with i
• conjugate, |z|, arg, Re, Im
• Arithmetic and scientific ops on a+bi
• Square root of negatives yields imaginary results
• BIN / OCT / HEX stay real / integer

PARTIAL RESULTS
• Keep, M+, Use, Remove, Clean
• Select a parked value (tap or ← →) and reuse it in multi-step work
• Partials follow your active base and display format

QUICK UNIT CONVERSION
• Length: cm ↔ in, m ↔ ft
• Mass: kg ↔ lb
• Temperature: °C ↔ °F
• Reverse with ⇄ (or swipe) and apply with CONV

SESSION & CONTROLS
• ON resets the working calculation
• OFF saves partials, modes, conversion, and current value, then exits
• State restores on the next launch
• Tap the Calc Only title to open the product site in your browser
• Menu drawer: About, Policies, Settings

PRIVACY
Calc Only does not require an account. Calculation data is stored locally. Internet is used only to open the privacy policy, the Calc Only website, and related product links you choose — never to upload your math.

Official site & policy:
https://beukot.com/app/calconly/
https://beukot.com/app/calconly/privacy-policy

Calc Only — just the calculator.