A free and open source math plotter, easy to pick up
AI UX intelligence system for product designers and founders
Stage
Established
Startup
Founded
2011
2025
Based in
Not given
IN
Pricing model
Open source
Freemium
Pricing
Not given
Free: $0/month with 100,000 tokens (about 15 questions or 3 screen reviews). Pro Quarterly: $57 billed quarterly (about $19/month) with 1.9 million tokens (about 215 questions or 70 screen reviews). Pro Yearly: $131 billed yearly (about $10.92/month) with 1.9 million tokens.
Key features
Natural function notation like f(x) = 2 + cos(x)
Sequences from recurrence relations
Parametric equations with custom intervals
CSV data import and spreadsheet editing
Animated constants and variable families
Vector and image exports (SVG, PDF, PNG, JPEG, BMP, PPM)
Grid customization with π multiples for ticks
Interactive navigation with drag and zoom
Multi-language support in 9 languages
Built-in manual and automatic work saving
Ask UX questions and get answers citing verified guidelines
Audit screens measuring contrast, tap targets and text sizes from pixels
Library of 50 free UX laws and guidelines
Multiple AI model comparison for design analysis
UX prompt optimization
Unified consensus on design decisions
Projects that remember product context
Every finding cites its source guideline
Access to Claude Opus 5, Gemini Pro and Deep Research on Pro plans
What makes it different
Draws mathematical objects exactly as written on paper with natural notation
Handle CSV files of several million cells
Objects can build on each other in expressions
Exports with exact size in real centimeters
Fully free and open source under GNU AGPL license
Every finding cites a verified guideline, not an opinion or guess
Measures what it claims using pixel-level data, not guesses
Built by certified UX professional with 19 years of practice
Answers backed by universal UX/UI/CRO principles and human psychology research
Instant feedback at every stage instead of waiting days for design reviews
ZeGrapher
ProUX