Privacy Policy — Undrift

Last updated: February 17, 2026

Undrift is a Chrome browser extension that helps users stay focused by blocking distracting websites during focus sessions. This policy explains what data Undrift collects, how it is stored, and how it is used.

Data Collection

Undrift collects the following data to provide its core functionality:

• Time tracking data — The domain names of websites you visit and the duration of time spent on each, aggregated daily. This is used to show you your screen time habits.
• Focus session history — Start time, duration, which sites were blocked, and whether the session was completed. This powers your session history and completion stats.
• Interruption logs — When you attempt to visit a blocked site during a focus session, the domain and timestamp are recorded. This measures how well you resisted distractions.
• Reflections — If you choose to use the reflection tool on the blocked page, the text you submit is saved locally.
• Preferences — Your selected sites to block, custom domains, personal focus reason, and gamification progress (XP, achievements, level).

Data Storage

All data is stored locally on your device using Chrome's built-in storage APIs (chrome.storage.local and chrome.storage.sync). Your data never leaves your browser. Undrift does not operate any servers, databases, or cloud services that receive your data.

No data is transmitted to Undrift or any third party.

Permissions

Undrift requests the following browser permissions: Permission: storage Why it's needed: Save your preferences, session history, time tracking data, and gamification progress locally ──────────────────────────────────────── Permission: tabs Why it's needed: Monitor which tab is active to track time spent on websites and redirect blocked sites during focus sessions ──────────────────────────────────────── Permission: declarativeNetRequest Why it's needed: Block access to distracting websites by redirecting them to the intervention page during focus sessions ──────────────────────────────────────── Permission: alarms Why it's needed: Schedule session end timers, time tracking heartbeats, and notification triggers ──────────────────────────────────────── Permission: notifications Why it's needed: Send you alerts when you've spent too long on a site, when a session is ending, and when you earn achievements ──────────────────────────────────────── Permission: idle Why it's needed: Detect when you step away from your computer so time tracking is paused and not counted inaccurately ──────────────────────────────────────── Permission: <all_urls> (host permission) Why it's needed: Required for URL blocking to work on any website and for tab URL access across all domains Third-Party Services

Undrift does not use any third-party analytics, advertising, or tracking services. No data is shared with or sold to any third party.

Data Retention and Deletion

Your data is retained locally until you uninstall the extension, at which point Chrome automatically removes all stored data. You can also clear your data at any time through the extension's settings or by clearing your browser's extension storage.

Children's Privacy

Undrift does not knowingly collect data from children under 13. The extension is intended for general audiences seeking to improve their focus habits.