Happy Pi Day! Today we're celebrating with a big MathCat update — new content, new AI learning experiences, and a refreshed site that makes math learning smoother than ever.
📚 1. A massive expansion of math competition content + lessons
We've aggregated 5,897 competition math problems across:
- 🏆 AMC 8, AMC 10, AMC 12
- 🧠 AIME
- 🥇 USAMO & USAJMO
- 🌍 IMO
And we now have 9,611 total resources plus 171 structured lessons with progress tracking — so you can learn, practice, and measure growth all in one place.
Learn from curated video lessons while your AI tutor explains concepts in real time.
Browse the full collection in Explore or jump into a Learning Path.
🤖 2. AI Live Tutor — ask anything, two ways
We launched AI Live Tutor, so you can get interactive help while you browse the site or solve problems:
🎥 Video Chat
A face-to-face tutor experience with an animated avatar companion. Ask questions, discuss Pi Day history, or work through tough problems together.
Chat with your AI tutor about anything — here we're exploring the story behind Pi Day!
💬 In-page tutoring
Get help without leaving your workflow. The tutor appears right where you're studying — on lessons, practice sets, or competition problems.
Stuck on a practice question? The AI tutor explains the answer instantly.
Tackle competition-level problems with detailed, step-by-step AI solutions.
✨ 3. A new look, upgraded AI, and flexible plans
MathCat now has brand-new UIs and more advanced AI models across the site. Chatting is always free, and there are subscriptions for learners who want more:
🆓 Free — always free
Every lesson and practice set, Guided & Advanced modes, growth tracking (XP, streak, leaderboard), and daily chat limits.
⚡ Super (most popular) — $12/mo
Everything in Free plus Max Mode (our most powerful model), higher chat allowance, photo homework scans, and voice-powered tutoring.
👑 Ultra — $24/mo
Everything in Super plus Thinking AI (see reasoning step-by-step), more photo scans, more voice tutoring, and unlimited live AI Tutor sessions.
Every paid plan includes a 30-day free trial — cancel anytime.
🎁 Pi Day bonus: extra free trial time
During the next week (March 14 – 21, 2026), use coupon code MATHCAT-PIDAY to get an extra month of free trial.
That's 60 days free — 30-day standard trial plus 30 days from the Pi Day bonus. 🧠✨
Enjoy your math learning journey — and happy Pi Day! 🥧