STEM Writer

STEM Writer is a Markdown editor built for students, educators, and researchers who write math. Type LaTeX between dollar signs and watch it render instantly — inline equations flow with your text, and display equations get centered blocks. No preview-switching, no exporting to check your work. WRITE MATH FAST • Live rendering for inline ($…$) and block ($$…$$) math • Math toolbar with 30+ symbols: fractions, integrals, sums, limits, Greek letters, relations • Auto-closing math delimiters — type $ once, keep writing • Tab through placeholders to fill in templates without touching the screen VISUAL MATRIX BUILDER • Six matrix types: parentheses, brackets, braces, single/double bars, plain • Pick rows and columns, preview the LaTeX, insert with one tap FULL MARKDOWN • Headings, bold, italic, lists, code • Equation numbering tags • Plain .md files via the Files app — your notes stay portable and yours PRIVATE BY DESIGN • Works completely offline — the app makes no network connections • No accounts, no analytics, no tracking Questions or ideas? support@stemwriter.com