Compare one sec, To-do List, and StayFocusd: Which Extension is the Best?

We like that it nails the essentials without pretending to do everything. You can capture tasks quickly, organize with simple lists or tags, add due dates and reminders, and attach short notes to keep context. It also syncs and works offline when needed. The flipside is clear: there are no advanced filters, templates, or automations, and integrations are minimal. If “fast basics” is your goal, it succeeds.

It feels instant, which matters more than people admit. The pop-up opens quickly, typing and checking off tasks are immediate, and sync behaves reliably across sessions without hogging memory or slowing other tabs. Staying fast keeps you in flow—and that’s the real performance test for a to‑do tool. We never felt it getting in our way.

The extension is lightweight and responsive, without slowing your browser. Features work reliably, and time limits activate quickly. Minor lags occur in the analytics dashboard and cross-device sync, but overall, performance is smooth and stable for day-to-day use.

The interface is clean, calm, and focused on the list. We noticed readable typography, sensible spacing, and a clear hierarchy that keeps controls out of the way. Keyboard navigation works well, and the UI feels snappy in both pop-up and full view. The minimalist approach avoids visual clutter without feeling bare. It looks and feels like a tool designed for momentum.

As a free, lightweight checklist, it delivers real everyday value. There is a ceiling for power users, who may still want a pro task manager as needs grow. But as a companion list that stays out of your way, it punches above its (free) weight

This is a tool you understand in a minute. We didn’t need a tour—adding, editing, reordering, and completing tasks are all immediately discoverable, and the few shortcuts are easy to remember. The daily flow of capture → prioritize → complete is frictionless, and it’s forgiving when you make quick edits or misclicks. If you value speed over setup, it shines.

Set up is fast and all main functions are accessible with just a few clicks. Adding sites or setting limits is straightforward, and tooltips help if you need them. The nuclear option and challenge features are easy to use but offer enough resistance to accidental changes. Mobile integration is available, though setup there could be smoother. It’s user-friendly with almost no learning curve.

It keeps things modest, which often helps privacy by default. From our use, it appears to rely on browser sync with local storage offline and keeps permissions lean, avoiding unnecessary prompts. We’d still like clearer public documentation about data handling and retention. In practice, it benefits from the security of the browser’s sync, but more transparency would inspire extra confidence.

StayFocusd runs mostly on your device and collects very little personal data. The privacy policy is transparent, and data for analytics is anonymized. The extension only requests required permissions, though some users may still worry about the broad “read and change all your data” permission. No tracking cookies or web beacons are used.