Deep ocean scene representing a focused work environment

14 days to find your depth

Do Deep Work. Block Distractions Everywhere.

Nereus creates a quiet digital environment across your computer, phone and browser, so your best work has somewhere to happen.

14-day free trial · no credit card required

Deep Work session

01:24:36

Focus mode active68%

Blocked today

147 attempts

quietly redirected

Mac · iPhone · Chrome synced

Trusted by professionals at Netflix, Google & McKinsey

5×

More productive

During flow, top executives can be up to 500% more productive.

2 hrs

Saved every day

That is how much focused time interruptions can quietly cost.

100×

Faster brain signals

Well-myelinated signals travel over 100x faster.

Built for depth

Distraction blocking across all your devices.

Customize your digital focus environment once, then carry it everywhere your work happens.

Desktop app

Protect the work that matters

Block distracting apps and websites at the system level, then start a focus session that is difficult to break.

Mobile app

Keep your attention in sync

Your focus environment follows you from desk to phone, with synced sessions and a calmer default everywhere.

Chrome extension

Close the browser loophole

Set tab limits and block the sites that pull you out of flow while you work in the browser.

Block apps and websites on every device

Focus timer with flexible session lengths

Deep Work analytics and streaks

Custom schedules for recurring focus

Quick-start sessions when inspiration hits

Cross-platform synchronization

Nereus blocks distractions everywhere.

Nereus connected across laptop, phone, tablet and desktop

Focus with purpose

Your productivity can leave a cleaner wake.

For every 100 hours of deep work completed by our community, we remove one pound of plastic from the ocean. Your focus creates real environmental impact.

Our impact

Real plastic removed from oceans worldwide, thanks to our focused community.

How it works

We partner with 4ocean to remove plastic waste from marine environments.

Your contribution

Track your personal impact and see your focus time translate to cleaner oceans.

Download Nereus

Choose the version for every place you work.

The top button tries to choose for you. This section keeps every supported platform visible.