Terms of use

Last updated: November 13, 2026

These terms are an agreement between you and Strategic Thinking Systems, Inc. (“STS”, “we”), 304-1111 boul. René-Lévesque Est, Montréal (Québec) H2L 0E1, Canada. By using STS, you accept them. They’re short on purpose.

Using STS

Use STS lawfully. Don’t use it to harm others, break the law, infringe someone’s rights, or attack or overload the service.
Keep your account secure. You’re responsible for what happens under it and for what you share through it.
If you use STS for an organization, you confirm you can accept these terms on its behalf.

Your content

What you put in STS stays yours. You give us permission to store, process and display it only to provide the service to you and the people you share it with.
You’re responsible for having the right to use what you upload.
How we handle personal information is in our privacy policy.

AI features

STS connects you to AI services from other companies, such as OpenAI, Anthropic, Google and Perplexity. Their terms also apply to that use.
AI can be wrong. Check its answers before you rely on them, especially for important decisions. The decisions stay yours.

Plans and payment

Essentials is free. Paid plans are billed in advance, monthly or yearly, through Stripe.
You can cancel anytime. Your plan stays active until the end of the period you paid for.
To keep STS fast and affordable, we may limit capacity or some features. If that happens, we’ll offer you a plan that covers what you need.
We may change prices. We’ll tell you before a change affects your plan.

Suspension

We may suspend or close an account that breaks these terms or the law. Unless it’s urgent or illegal to do so, we’ll tell you first. You can close your account anytime by writing to us.

No guarantees

STS is provided “as is”. We work hard to keep it available and reliable, but we can’t promise it will always be uninterrupted or error-free. To the extent the law allows, our total liability to you is limited to what you paid us in the 12 months before the problem. Nothing here limits rights you have as a consumer that the law doesn’t allow us to limit.

Changes

We may update these terms. We’ll post the new version here, and tell you by email or in the app before a significant change applies.

The law that applies

The laws of Quebec and of Canada apply, and the courts of Montréal decide disputes, unless your consumer protection law gives you other rights.

Contact

Questions about these terms: privacy [at] sts42.com.