What it costs
Nothing. MySolvers is free to use today — every component, models of any size, batch runs with confidence intervals, import and export to a file, and no account needed to start.
The free tier stays free. If you are teaching with it, or building something on top of it, that is a commitment rather than a trial period.
There will be a paid tier later, for work that goes beyond what a free tool in the browser should carry. What goes into it is still open. It does not exist yet, and it is not on sale.
No release date — a roadmap without dates ages better than one with them. The roadmap shows what is being built, and you can leave your address there to hear when something ships.
Until then the work is paid for out of my own pocket. If MySolvers has been useful to you, you can leave a tip — entirely optional, and it buys no perks and no priority.