Note-taking app with precision geometry tools for STEM students
Built for STEM students, engineers, and technical professionals who create geometric diagrams, repeating patterns, and mathematically precise visual notes and need pixel-perfect alignment without manual adjustment..
“The only reason I have stuck with notability for so long is the geometry and snap to grid capabilities. The most recent update has removed that for ellipses and…”
The receipts — real demand
“The only reason I have stuck with notability for so long is the geometry and snap to grid capabilities. The most recent update has removed that for ellipses and circles. Rotating ellipses non longer snap to horizontal or vertical alignment when you get close - you just have to eyeball it. The same goes for aligning edges of circles and ellipses with the grid in graph paper templates. I used to love using notability b…”
Full dossier
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Every corroborating quote, the source receipts, and the community echo. One email, no payment.
Why this is a gap
Surfaced from a high-intensity complaint with clear willingness to pay and a specific, reachable audience.
The market
STEM students and engineers who create geometric diagrams and mathematically precise notes. No search volume, but the pain is specific: a feature (geometry/snap-to-grid for ellipses and circles) was removed from a widely-used app, leaving power users stranded.
Competition & the opening
Notability, GoodNotes, Apple Notes, OneNote. The gap: mainstream note apps treat geometry as a secondary feature and deprioritize precision tools in updates, leaving no app fully optimized for pixel-perfect technical drawing on mobile.
What's hard to build
Building accurate geometric rendering, snap-to-grid algorithms, and rotation math without performance degradation on mobile hardware. The feasibility score of 5/10 reflects that precision graphics are hard to execute smoothly on mobile without custom rendering pipelines.
Why now
Notability removed precision geometry in a recent update, leaving STEM students without a tool; gap is real and immediate.
How you'd monetize
$9.99/mo SaaS