Every iPhone needs a few good scientific apps. We benchmark 245+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.
This app provides a powerful scientific calculator with step-by-step solutions for equations, advanced functions, and graphing capabilities. It includes a formula library and unit converter, inspired by a popular Casio model, to aid in learning and problem-solving for math and science subjects.
This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.
What We Love
👍 Intuitive and easy to use
🚀 Powerful and feature-rich
💡 Customizable interface and settings
🔍 Extensive library of formulas and equations
⚙️ Handles complex math and scientific functions well
Desmos Scientific Calculator tops our scientific apps ranking as of September 2026, with a 4.3-star average from 332 App Store ratings, and it's free to download.
Are there free scientific apps for iPhone?
Yes — 19 of the top scientific apps we rank are free to download, including Desmos Scientific Calculator and Scientific Calculator fx-991.
Does Desmos Scientific Calculator have ads or in-app purchases?
Desmos Scientific Calculator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
How many scientific apps are on the App Store?
We track 245+ scientific apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
What does the Desmos Scientific Calculator do?
The Desmos Scientific Calculator goes beyond basic arithmetic, offering functions for trigonometry, statistics, and combinatorics. It allows users to define and evaluate their own functions, assign values to variables, and view multiple expressions at once. It also supports advanced operations like exponentiation, radicals, and logarithms.
What are the key features of this calculator app?
Key features include a comprehensive set of arithmetic operations, trigonometric functions (with radians or degrees), statistical calculations (mean, standard deviation), combinatorics (combinations, permutations, factorials), and the ability to create and evaluate custom functions. It also works offline, allows variable assignment, and displays multiple expressions simultaneously.