LaTeXBoard vs Sigmakey

Stop struggling with math on mobile. LaTeXBoard is the ultimate custom keyboard extension designed for students, engineers, and researchers who need to communicate complex mathematical formulas on the go. Unlike other solutions that rely on slow, memory-hungry WebViews, LaTeXBoard features a custom-built, 100% native rendering engine. Key Features: Instant PNG Export: Type your formula, preview it, and copy it to your clipboard as a high-quality, transparent PNG image. Perfect for WhatsApp, Slack, iMessage, and Discord. Professional Math Suite: Full support for matrices, fractions, integrals, square roots, and complex limit notations. Pure Native Performance: Built from the ground up using CoreGraphics and Swift. No WebViews, no MathJax, no latency. Memory Efficient: Optimized to run within the strict iOS keyboard memory limits (Jetsam), ensuring a stable and crash-free experience.

Sigmakey is a math keyboard for people who need to type actual math, anywhere you can type at all. Fractions, exponents, roots, Greek letters, and matrices sit one tap away, and the cursor moves right into a numerator or an exponent, so scientific notation looks the way it should. - A full math keyboard layout that works in any app with a text field - A two-dimensional field with a cursor that steps into fractions and powers - Type LaTeX, plain Unicode, or a rendered image, whichever the app expects - Everything typeset on device, with no network - Search for a symbol, or grab a recent or a favorite Drop an equation into a note, a message, or a homework app without hunting through menus. Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/