Privacy
Short version: no accounts, no ads, nothing about you is stored on our servers.
Solving happens in your browser
The equation solver, grapher, calculators and practice generator run entirely on your device. The problems you type are not sent to us.
What’s saved on your device
To be useful when you come back, EquationCraft saves two things in your browser’s localStorage: your last 12 solved problems, and your practice score and streak. They never leave your device.
The AI tutor and word-problem helper
These only run when you press their button. The problem, the solver’s steps and any working or question you type are sent to our server and passed to an AI model through Vercel AI Gateway to write the reply. We don’t store it or link it to you. Please don’t include personal information in what you type.
Analytics
We use Ahrefs Web Analytics to count page views. It is cookieless and doesn’t collect personal data.
Contact
Questions about this policy can be sent through the contact details on the domain’s registration.