Calculator Plus All in One

Every tool unlocked. No paywall on any calculator.

Solve equations step by step, work with matrices, take derivatives and integrals, and look up any of 118 elements - all offline, all free.

WHAT MAKES IT DIFFERENT

Step-by-step solutions
See how the answer was reached, not just the result. Linear, quadratic and cubic equations, plus 2-variable systems.

Formula library - 33 formulas
Physics, chemistry and math. Fill in the values you know and the app solves for whichever one is missing. Newton's second law, Ohm's law, molarity, dilution, law of cosines, compound interest and more.

Periodic table - 118 elements
Atomic mass, electron configuration, electronegativity, period and group. Grid view or list view, with search.

Matrices up to 6x6
Determinant, inverse, transpose, rank, and solving linear systems.

Calculus
Symbolic derivatives and definite integrals, with a graph view.

Programmer mode
Binary, octal, decimal and hex. Bitwise operations, 8 to 64 bit widths.

Complex numbers and vectors
Polar form, nth roots, dot and cross products, angle between vectors.

Statistics and graphing
Mean, median, mode, standard deviation, variance. Plot multiple functions at once.

EVERYDAY TOOLS

Currency and crypto conversion with live rates. Loan and savings interest with a full amortization schedule. Tax, tip, discount, BMI, GPA, fuel cost, unit price comparison, electricity bill. Length, area, speed, temperature and clothing size conversion. Fractions, percentages, date difference, geometry, bubble level.

BUILT TO BE PLEASANT

- Works fully offline, except live exchange rates
- 11 languages
- Calculation history with timestamps, tap any entry to reuse it
- Tap anywhere in the expression to edit that exact digit
- Landscape mode on the main calculator
- Search box and favorites in the tool drawer

Premium removes ads and unlocks extra color themes. Everything else is free, permanently.