Contact onetimer
Last updated: September 20, 2026
This page is how to reach the people who run onetimer.app. There is no chat widget and no account inbox.
Use that address for the tools, this website, privacy requests, or a broken page. Include the URL you were on and what you expected to happen.
What we can help with
We can explain how a module is supposed to work, why sound needs an open tab, or how cookie choices affect analytics and ads. We cannot recover timer data stored only in your browser after you clear site data.
Data practices are described in the Privacy Policy.