Crowdsim
Last updated 18 October 2026

Terms of Service

The terms for using Crowdsim's app, debriefs and API. They're written to be read. If something here isn't clear, ask us before you rely on it.

Who you're dealing with

Crowdsim is a sole proprietorship registered in Ontario, Canada, run by Andrew Ko. Write to hello@crowdsim.ca about anything on this page.

What Crowdsim is

Crowdsim explains campaign results with a simulated crowd: AI-made locals, weighted to real census figures, who read the news from the weeks a campaign ran and react to its ads. A debrief puts your platform's numbers, untouched, beside the crowd's side of them, and labels which is which.

  • The crowd is simulated. Its reactions are not a survey of real people and not a forecast. Use them to understand and to decide what to test, alongside your own judgement and data. Decisions about your campaigns are yours.
  • It's a pilot. Features change as we learn, and some may be added or removed. We'll tell you before anything you rely on goes away.

Your account

  • Keep your sign-in to yourself and tell us straight away if you think someone else has used it.
  • You're responsible for what's done in your account, and for making sure the people you add are allowed to act for your agency or business.

What you send us

  • It stays yours. Campaign exports, ads, notes and anything else you upload or connect remain yours, or your client's.
  • What you let us do with it. Use it to prepare and deliver your debriefs, compare your tests, run the service and keep it secure. It also calibrates your own copy of the crowds you use, which only you use. It calibrates our shared crowds only if you tick the box that allows it, or on a free trial, where the Free Trial Terms let us use your results, de-identified, for that. Our privacy page says exactly what we keep and for how long.
  • You're allowed to share it. Only send campaigns and ads you have the right to share with us, including any your client owns.
  • No personal information. Don't send customer lists or anyone's personal details. Ad-level exports don't need them.

What we give you

  • Your debriefs are yours to use. Share them with your clients, put the slides in your own decks and edit them as you like. Keep the labels that say which parts are simulated whenever you show the crowd's side.
  • The rest stays ours. The crowds, the locals, the engine, the software and the site belong to Crowdsim. Don't copy, resell or rebuild them, or use our output to train a competing product.

Using it fairly

  • Don't use Crowdsim to break the law, to mislead people (for example, by presenting the crowd's reactions as a survey of real people), or to target or discriminate against anyone.
  • Don't try to get around limits, get into other people's data, or disrupt the service.
  • If you connect an ad account, the platform's own terms (such as Meta's) apply to that account too.

Fees

During the pilot, fees are whatever we've agreed with you in writing. We'll never charge you for something you haven't agreed to. A free trial is free in exchange for the results it shares, under the Free Trial Terms.

Confidentiality

We treat your campaigns, results and debriefs as confidential and never show them to another agency or client. Please do the same for anything we share with you that isn't public.

If something goes wrong

  • As it is. We work hard to make Crowdsim accurate and available, but we provide it as it is and can't promise it will be uninterrupted or error-free, or that any result will match what real people do.
  • Limits. To the extent the law allows, we aren't liable for indirect or lost-profit losses, and our total liability to you is limited to what you paid us in the 12 months before the claim, or CAD $100 if that is more.

Ending it

You can stop using Crowdsim and ask us to delete your data at any time (see Deleting your data). We can suspend or close an account that breaks these terms, and we'll tell you why unless the law says we can't.

The law that applies

These terms are governed by the laws of Ontario and the federal laws of Canada that apply there, and the courts of Ontario decide any dispute.

Changes

If these terms change, the date at the top changes with it, and we'll tell you about any change that matters before it applies to you.