Desktop App for Mac & Windows

Use the Internet
With Intent.

You don't need to quit everything. You just need to make sure you're choosing to open it, not being pulled in by an algorithm.

Download Free See How It Works

Built for balance, not abstinence.

Most blockers treat all entertainment as the enemy. Sumi helps you take back control without giving everything up.

Not Anti-Entertainment

Sumi doesn't punish you for wanting to game or scroll. Entertainment isn't the enemy. Losing control of the choice is.

Pro-Intention

The apps you use are built to keep you engaged. Sumi puts you back in the driver's seat so you're choosing, not reacting.

System-Level Protection

Willpower alone can't beat teams of engineers. Sumi fights back at the browser and OS level so you don't have to.

System-level blocking. Intentional browsing.

Willpower alone can't beat teams of engineers optimizing for your attention. Sumi fights back at the OS level.

Block Apps at the OS Level

Kills distracting processes like game launchers, social apps, and anything that pulls you in.

Block Websites System-Wide

DNS and firewall-level blocking across every browser. No workarounds.

Intent Mode

Want to open something blocked? Write why first. Browse with purpose, not on autopilot.

Focus Sessions

Timed sessions to lock in. Lock mode can't be turned off until the timer ends.

Schedules & Presets

Automate blocking with recurring schedules. Save presets and activate them in one click.

Lock Mode

Can't change your block list or end a session early. For when you don't trust yourself.

Get started in minutes

Choose what to block

Pick the websites and apps that pull you in. Save them as presets for different contexts.

Pick the blocker strength

Strict mode hides distractions. Lock mode blocks everything with no off switch until the timer ends.