UglyTube collects nothing, sends nothing, and has no server.
What the extension stores
UglyTube stores two things, using the browser's own chrome.storage.local:
Your settings — which switches are turned on, the popup theme, and whether diagnostic logging is enabled.
Today's watch time — a running total, in seconds, of how long a YouTube video has been playing today, together with the date it belongs to.
This data stays inside your browser profile. It is never transmitted anywhere, and the developer has no way to read it.
What the extension does not do
It makes no network requests of any kind. It has no server, no analytics, no error reporting and no account system.
It does not collect personally identifiable information, health data, financial data, credentials, personal communications, location, browsing history, or the content of pages you visit.
It does not transmit, sell, rent or share any data with anyone, because it never obtains any to begin with.
It contains no remote code. All JavaScript and CSS ships inside the extension package and is reviewable in the Chrome Web Store listing.
Which sites it runs on
UglyTube requests access to youtube.com only. It runs nowhere else. On YouTube it applies a stylesheet and reads the page's own video player state in order to count watch time. It does not read your account, your subscriptions, your search history or the videos you watch.
Removing your data
Uninstalling the extension deletes everything it stored. You can also clear the watch-time total at any time from the extension's popup.
Changes
Any future change to this policy will be published at this address, with the date above updated.