PlainMath

Free plan

What the maker publishes

Account features

A free account unlocks Smart Practice, custom quizzes, mistake-based practice, progress analytics, learning history, and printable worksheets. source

Accuracy

PlainMath says floating-point arithmetic, unusual inputs, and edge cases can produce unexpected results, so important results should be independently verified. source

Ads

PlainMath says no ads interrupt its learning tools. source

Advice limitation

The terms say calculations are for general information and are not financial, tax, legal, or engineering advice. source

Everyday tools

The site includes a calculator with keyboard support and history, plus tip splitting, unit conversion, and percentage tools. source

Guest access

Core tools can be used without signing up, and guest XP, streak, and rank stay on the device. source

Learning resources

The site offers topic guides with worked examples, visualisations, and practice problems. source

Mobile use

PlainMath says its responsive interface works on phones, tablets, and desktop browsers. source

Practice

Quizzes, daily challenges, speed games, and Spot the Mistake give learners practice and feedback. source

Product

PlainMath is a free, browser-based math solver that shows the steps used to reach an answer. source

Subjects

It covers arithmetic, fractions, percentages, algebra, geometry, trigonometry, calculus, and statistics. source

Warranty limitation

The terms say the service is provided as is and results are not guaranteed to be error-free. source

Checked against the maker's pages on 11 Oct 2026.