The agreement authorizes Substack to change the Terms at any time with notice provided via website posting, email, or other means. Continued use of the platform after a terms change constitutes acceptance of the revised terms, and rejection means the user may no longer use Substack.
This analysis describes what Substack's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology
This provision establishes that Substack may modify the Terms unilaterally and that continued platform use after notice constitutes binding acceptance of the changes. The agreement does not specify a minimum notice period before changes become effective, and notice may be provided by means including website posting alone.
Provision name changed from 'Unilateral Terms Modification' to 'Unilateral Terms Amendment' with no text changes.
View full change record →Under this clause, Substack may amend the Terms at any time and treats continued platform use as acceptance of the revised terms. The agreement does not establish a minimum advance notice period before amended terms take effect.
How other platforms handle this
You may give us your Identity Data, Contact Data, Financial Data, Profile Data, and other information by filling in forms or by corresponding with us by post, phone, e-mail or otherwise.
telemetry information collected includes: (i) microservice settings, (ii) usage data and (iii) hardware environment.
Some of our ad partners may also enable us to collect similar data directly from their website or app by integrating our or our affiliates' advertising technology.
"We reserve the right to change the Terms at any time, but if we do, we will bring it to your attention by placing a notice on the website, by sending you an email, and/or by some other means. If you don't agree with the new Terms, you are free to reject them; unfortunately, that means you will no longer be able to use Substack. If you use Substack in any way after a change to the Terms is effective and notice has been provided, that means you agree to all of the changes.Excerpt from Substack's Terms of Use
1) REGULATORY LANDSCAPE: Unilateral modification clauses in consumer contracts are subject to scrutiny under consumer protection law in multiple jurisdictions.
Enforcement risk, jurisdiction flags, contract triggers, and due diligence action items.
Netflix updated its Privacy Statement on April 18, 2026, disclosing voice recording collection and expanded household ad profiling for the first time.
Google's Privacy Policy covers Search, Gmail, YouTube, Maps, and every site running Google Analytics. Here is what it actually authorizes.
Get the research letter
Companies change their terms quietly. We read every version and catch what actually changed. One email a week on the changes that matter and what they mean.
This provision establishes that Substack may modify the Terms unilaterally and that continued platform use after notice constitutes binding acceptance of the changes. The agreement does not specify a minimum notice period before changes become effective, and notice may be provided by means including website posting alone.
Under this clause, Substack may amend the Terms at any time and treats continued platform use as acceptance of the revised terms. The agreement does not establish a minimum advance notice period before amended terms take effect.
ConductAtlas has identified this type of provision across 296 platforms. See the full comparison.
No. ConductAtlas is an independent monitoring service. We are not affiliated with, endorsed by, or sponsored by Substack.