Calqiva

Calqiva is a modern, offline calculator built for accuracy and everyday productivity. Switch cleanly between Standard, Scientific, Programmer, Financial, and Unit Converter modes — without ads, accounts, or an internet connection.

STANDARD CALCULATOR
• Addition, subtraction, multiplication, and division
• Percentages, decimals, parentheses, and ± toggle
• Clear, clear entry, and backspace
• Continuous calculations with proper operator precedence
• Memory functions: MC, MR, M+, M−, MS
• Copy results and paste numbers
• Reliable handling of large numbers, tiny decimals, and errors (including division by zero)

SCIENTIFIC MODE
• Trigonometry: sin, cos, tan, asin, acos, atan
• Hyperbolic: sinh, cosh, tanh
• log, ln, roots, powers, exponential, factorial, absolute value, reciprocal, modulo
• Constants π and e, plus random
• Degrees / radians toggle

PROGRAMMER MODE
• Decimal, binary, octal, and hexadecimal
• Live base conversion as you type
• Bitwise operations: AND, OR, XOR, NOT, NAND, NOR, shifts
• Invalid keys are disabled automatically for the selected base

FINANCIAL TOOLS
• Simple interest & compound interest
• EMI / loan calculator
• SIP calculator
• CAGR
• Discount, profit & loss, percentage increase/decrease
• GST / tax
• Tip calculator
• Future value & present value
• Clear inputs, result breakdown, and copy support

UNIT CONVERTER
Instant offline conversion across:
Length, Mass, Temperature, Area, Volume, Speed, Time, Data Storage, Energy, Pressure, Angle, Power, Frequency, and Fuel Consumption
• Swap units, search, favorites, and recent conversions
• Copy converted results

HISTORY & MEMORY
• Save calculations locally with expression, result, mode, and time
• Search and filter by mode
• Grouped by Today, Yesterday, Previous 7 Days, and Older
• Tap to reuse, copy, delete, or clear all
• Optional memory persistence across launches

PERSONALIZE CALQIVA
• Light, dark, or system theme
• Optional dynamic color
• Haptic feedback
• Decimal precision and thousand separators
• Scientific notation preference
• Default calculator mode
• Degree / radian preference

DESIGNED FOR ANDROID
• Clean Material Design experience
• Works offline — no internet permission required
• Responsive layout for phones and larger screens
• Fast startup with a simple branded splash screen

Whether you need everyday arithmetic, scientific functions, bitwise math, EMI/SIP planning, or quick unit conversions, Calqiva keeps calculation clear, precise, and ready whenever you are.

Download Calqiva and calculate with confidence.