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Quick summary
xFormula is a free equation-creation app for iPhone, developed by 煦 张. It provides a compact, touch-friendly workspace for composing mathematical expressions on the go, aimed at learners, instructors, and technical professionals who need to build and share formulas quickly.
What it can build
- Large operators (summation, product, etc.)
- Radical expressions (square roots and higher-order roots)
- Properly formatted fractions
- Character accents and diacritics
- Stacked notations like overline
- Underlined elements when needed
- Grouping symbols such as parentheses, braces, and brackets
- Relational symbols (equals, inequalities)
- Directional arrows and connectors
- Binary operators (plus, minus, times, etc.)
- Named variables and symbolic identifiers
Output and sharing options
xFormula lets you export your finished equations in multiple formats. Save visuals as image files for slide decks or documents, or export the underlying code as LaTeX to insert into papers, websites, or other editors that accept TeX.
Who benefits most
Students working through homework, teachers preparing examples or handouts, and professionals documenting formulas will find the app convenient for quick creation, editing, and export without needing a desktop equation editor.
Alternative recommendation
If you want a different free tool with a more sketch-oriented workflow, consider Paper by WeTransfer as an alternative for jotting and sharing math-related notes and visuals.
Getting started
Download xFormula from the App Store, open a new equation canvas, and begin inserting symbols and structures from the palette. Explore the export menu to save images or copy LaTeX for integration into your documents.
Technical
- iPhone
- Free
