Focus timer
Time-block sessions in 15–120 minute units. Smart breaks adapt to the depth of work you just did.
4.8 · 10,428 reviews
250,000+ downloads
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Featured by Apple in “New apps we love”
Editor's Choice on Google Play
Features
Six small things that change how you work.
Every feature exists to remove friction from one decision: do the work that matters next.
Distraction shield
Block apps and sites at the OS level. Whitelist what you actually need; everything else stays gone until you stop.
Calendar sync
Read-only sync with Google, Apple, and Outlook. Your blocks land where the meetings aren't.
Weekly insights
See where your hours actually went. Patterns surface without dashboards — three sentences, one chart, every Monday.
Team rooms
Co-work silently with a small group. See who's heads-down, share a session goal, end with a wrap.
On-device privacy
End-to-end encrypted. Your focus history never leaves the device unless you turn on sync — and even then, only you hold the keys.
Screenshots
A tour through a typical day.
Plan the morning, defend the afternoon, learn from the week.
Plan today
4 focus blocks
Deep work9:00–11:00
Focus11:30–13:00
Admin14:00–14:30
Deep work
Block 2 of 4
42:18
remaining
Weekly review
Mon–Sun
12 hrs focused this week
Loved by deep workers
What people who use it every day say.
“The shield is what finally got me to stop instinct-checking Slack. I get one real morning of work per day now instead of fragments.”
“My weekly review takes thirty seconds. The insight is always the same three sentences and they're always the right ones.”
“Team rooms feel like the good parts of an office and none of the bad ones. We ship more and message each other less.”
FAQ
Questions, answered.
Is Antimolecule free?
Yes — the core focus timer, distraction shield, and weekly insights are free forever. Pro unlocks team rooms and advanced analytics for $4.99/month.
Does it work offline?
Fully. Sessions, blocks, and notes sync when you reconnect — nothing critical depends on a server round-trip.
Which apps and sites can it block?
Any app installed on your device and any website by domain. You can build per-context block lists — one for deep work, one for evenings, etc.
Will my data stay private?
Your focus history is end-to-end encrypted and stored on-device by default. We never sell data and we never train models on it.
Does it integrate with my calendar?
Yes — read-only sync with Google Calendar, Apple Calendar, and Outlook. Blocks appear inline so you can plan a real day.