Privacy
Short version: no accounts, no ads, no cross-site tracking. The simulator runs in your browser.
What is collected
Your plant state and training progress stay on your machine (browser local storage) and are never uploaded by the simulator.
The only automatic collection is an anonymous page-view count from Vercel Web Analytics (the host for this site): page address, referring link, and coarse device info (country, device type, browser, OS). It sets no cookies, stores no persistent identifier, and cannot follow you to other sites. Nothing you do inside the simulator is recorded that way.
Email you send
If you write to reactordynamics@gmail.com, you choose what to include. Optionally attach a session diagnostics file from the simulator (plant state and command history from that session — not a profile of your device). Mail is used only to reply; it is not sold or shared for advertising.
Contact
Privacy questions: reactordynamics@gmail.com.