Last updated: March 2026
You must be 13 or older and a US resident to use CritMass.
By submitting your phone number, you authorize us to send you a one-time verification SMS and, if a campaign hits its target, follow-up SMS messages to coordinate action. You will not receive marketing messages.
Pledges are non-binding commitments. No financial transaction occurs. CritMass does not guarantee any campaign will reach its threshold or produce any specific outcome.
You may not submit false phone numbers, use automated tools to create pledges, or use CritMass for any unlawful purpose.
CritMass is provided as-is. We make no guarantees about uptime, accuracy of counts, or campaign outcomes.
We may update these terms at any time. Continued use constitutes acceptance.