Choose the plan that fits your learning journey
What counts as an AI interaction?
Each message you send to the AI assistant counts as one interaction. Graph tool calls triggered by the AI (adding functions, points, etc.) are included in the same interaction — they don't cost extra.
When does my daily limit reset?
Daily limits reset at midnight UTC. Any unused interactions do not roll over.
Can I use the graphing calculator without limits?
Yes. The graphing calculator, function input, and manual graph controls are always unlimited. Only AI chat interactions are metered.
How do I sign in?
Click "Sign in" in the top navigation bar. Currently we support Google sign-in. Apple sign-in is coming soon with our iOS app.
Can I cancel Pro anytime?
Yes. Pro is billed monthly with no commitment. Cancel anytime and you'll keep Pro access until the end of your billing period.