The Math Note-Taking App Built for iPad and Apple Pencil
Most note-taking apps treat math as an afterthought. MathNotes was built from the ground up for writing equations, solving problems, and studying STEM subjects on your iPad.
Write math the way you think
MathNotes uses native PencilKit on iOS, which means full Apple Pencil support with pressure sensitivity, tilt detection, and palm rejection. It feels like writing on paper, not fighting with a digital canvas.
You can choose from multiple background patterns -- plain, lined, grid, dotted, or graph paper -- depending on what you are working on. Notebooks support multiple pages, so a single notebook can hold an entire lecture or problem set.
More than just a notebook
What makes MathNotes different from general-purpose note apps is everything built around the canvas. Without leaving your notes, you can:
- -Open a floating calculator with scientific, graphing, matrix, vector, probability, and number theory modes
- -Select a handwritten equation and convert it to LaTeX for export
- -Ask an AI tutor for help -- it can see what you have written on the canvas
- -Import a PDF (like a textbook page or worksheet) as a background and annotate it
- -Mark up definitions, theorems, and formulas into a personal STEM library with a knowledge graph
Organize your math life
Notebooks are organized into folders with search, sorting, and thumbnails so you can find your work quickly. The STEM library lets you tag and categorize important content -- definitions, theorems, lemmas, examples, formulas, proofs, and corollaries -- across all your notebooks, then browse them by subject or explore connections in a knowledge graph.
Free to start
The core note-taking experience is free: handwriting with Apple Pencil, the scientific calculator, PDF import, background patterns, and notebook organization. Premium ($9.99/month with a 1-week free trial) unlocks the AI tutor, LaTeX conversion, all calculator modes, and removes ads.
Free users can also try premium features temporarily by watching a short ad -- for example, unlocking the graphing calculator for one hour, or earning a few AI chat messages.
Available on iPad and iPhone
MathNotes is available on iPad and iPhone, with Android coming soon. The iPad experience with Apple Pencil is the primary focus, but you can also use the app on iPhone.