Keep 1,000+ sims free for everyone

Your support keeps Simulations4All free and helps us bring simulations, calculators and tools to many thousands of learners, teachers and engineers around the world.

Simulations4All is built by a team of professionals and stays free for students and teachers, with no ads. If a sim helped you, you can support once, or become a Supporter for the price of a coffee a month.

Support once

Give any amount you like, once. No account, no strings attached; nothing is expected in return. It simply helps keep the site free. The amounts below are suggestions; you can change the amount at checkout.

Supporter

Monthly plans renew automatically. Cancel any time and you won't be charged again.

Become a Supporter, C$5/month

Payments are processed securely by Stripe. Simulations4All is an independent business, not a registered charity; no charitable tax receipt is issued. Prices are in Canadian dollars and tax may apply.

Questions

What does my support fund?: Servers, verification of the maths and physics in each simulation, and new simulations and tools. Simulations4All has no ads, and the free simulations stay free.
Do I get a tax receipt?: No. Simulations4All is an independent business, not a registered charity. Support payments are payments to a business, not charitable gifts, and no charitable tax receipt is issued.
Can I get a refund?: Support payments are non-refundable. You can cancel a monthly plan any time; it simply stops renewing and you won't be charged again. If you were charged by mistake or twice, contact us and we'll fix it.
Is my payment secure?: Yes. Payments are handled securely by Stripe. We never see or store your card details.
Paid without an account?: Create a free account with the same email and verify it; a Supporter contact form then appears on your dashboard.

See our Terms of Service for more.

Want your name on a simulation?

Sponsorship is optional and separate from the support above. Sponsors are credited on the simulation pages they back, and the Sponsors page lists the current supporters, the sponsorship tiers and our editorial independence policy. Using Simulations4All at your company? Contact us.

Sponsorship packages

Credits appear quietly beneath the simulation you choose. Sponsorship never influences the content, and each credit is reviewed before it appears.

For individuals (monthly)

Sim Patron C$10/month
Your name credited on 1 simulation you choose, for as long as you stay a supporter.
Become a Sim Patron
Sim Champion C$25/month
Your name credited on 3 simulations you choose, popular ones included, for as long as you stay a supporter.
Become a Sim Champion

For organizations (yearly, invoiced)

Bronze $1,000/year
Your organization's name and link on 2 simulations.
Silver $4,000/year
Your organization's name and link on 8 simulations, popular ones included, plus a sponsor page for one category.
Gold $10,000/year
Your organization's name and link on 25 simulations, popular ones included, plus a sponsor page for one category.