Cal C: Scientific Calculator
All in One: Units, EMI, Graphs
Free · Designed for iPad. Not verified for macOS.
Trig at 9am, EMI at noon, hex at midnight. One calculator that keeps up — plus graphs, units, statistics and live currency rates.
One app, every calculator you actually need — scientific, financial, programmer, graphing, statistics, matrix, plus unit and currency conversion. Stop downloading a new app every time the math changes.
You already know what your phone's built-in calculator can't do. Cal C picks up where it stops: solve for x, convert 40 units, work out an EMI, plot a graph, split a dinner bill, turn hex into binary, or check a live currency rate — without leaving the app or hunting for a website.
WHAT'S INSIDE
Standard — everyday arithmetic, percentages and memory functions, with a history you can search.
Scientific — trigonometry, powers, roots, factorials, logs, and constants including pi and e.
Equation Solver — enter an equation and get the answer, not just the arithmetic.
Financial — EMI, compound and simple interest, ROI, mortgage, tax and inflation calculators.
Programmer — binary, octal, decimal and hexadecimal conversion plus full bitwise operations.
Unit Converter — length, area, mass, temperature, speed, energy, pressure and more.
Currency Converter — live exchange rates for global currencies, in a couple of taps.
Graphing — plot and compare multiple equations visually.
Matrix — determinants, inverses, addition and multiplication, worked out step by step.
Statistics — mean, median, mode, variance and standard deviation from your own data sets.
Shapes — volume and surface area for cylinders, cones, cuboids, pyramids and more.
Date Calculator — days between two dates, or add and subtract time from any date.
Tip Splitter — work out the tip and divide the bill without the awkward silence.
Health — BMI and other everyday body metrics.
Favourites & Smart Search — pin the tools you use most, or type what you need and jump straight to it.
History — every calculation saved and searchable, so you never redo work you've already done.
WHO IT'S FOR
Students working through coursework. Engineers and developers who need hex and bitwise on hand. Anyone comparing a loan against a lease, or converting currency before a trip. Whoever gets handed the bill at dinner. People who just want a percentage without opening a browser.
WHY IT STAYS ON YOUR HOME SCREEN
- Every tool one tap away — pin favourites, or search by name
- Fast and accurate, with a clean layout that doesn't fight you
- Works offline for everything except live currency rates
- One download instead of five single-purpose calculators
Your everyday calculator, reimagined.
Terms & Conditions:
https://obsidian-tin-ee3.notion.site/Terms-and-Conditions-32009a72d7508089a28add4379351d81?pvs=73
Currency conversion in Cal C uses exchange rate data from the Frankfurter API, which provides foreign exchange reference rates published by the European Central Bank.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Bug Fixes
The developer, Pinki ., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Pinki .
- Size
- 32.7 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Array Dev