Lock in
Pick the work: code, writing, design, study, outreach. Choose what the timelapse will show: clear, blurred, or don’t capture at all. Sixty focused minutes starts now.
The deep work app
Four hours. Deep work. Locked in.
Chamber is a focus tool that keeps score of real, undistracted work. Start a one-hour session. The clock only runs while you’re actually focused. Drift, idle, or app-hop and it stops. Stack four deep hours a day, alongside a community doing the same.
Runs in your browser. Nothing to install, free and uncapped. The Mac app is paused for a rebuild and comes back with the full verification standard.
47saverage screen attention span1
275interruptions per workday2
23mto refocus after each one3
4hthe honest daily deep-work maximum
Every app on your screen is engineered to interrupt the next hour of your life.
Deep work (long, undistracted, cognitively demanding focus) is the rarest skill in the modern economy, and the most valuable.
It doesn’t survive on willpower. It survives on structure.
Chamber is that structure: a sealed hour, a clock that only counts focus, and a community of deep workers expecting you back tomorrow.
1. Mark, UC Irvine · 2. Microsoft Work Trend Index 2025 · 3. Mark & González
How it works
One hour at a time.
Four before midnight.
Go deep
The clock only counts undistracted time. Go idle, wander to a feed, start app-hopping, and it stops. Your integrity score records it. One honest number per hour: focused time ÷ elapsed time.
Own it
Every finished session is a verified hour on your daily ring and a recording on your disk. Publish it to the community, blurred or in full, or keep it private forever.
Verification, not surveillance
Proof you can hold.
Privacy you control.
Everything on-device
Idle detection, focus signals, camera presence: all computed locally. Nothing streams anywhere. There is no server to trust, because there is no server.
Condensed before it is stored
Every block becomes a thirty-second timelapse, built frame by frame on your machine while you work. The full-resolution capture is never written to a file and never uploaded — it exists only while the block runs. What survives is a clip you can actually watch, in a library you can empty with one click.
Blur, and mean it
Build in public without showing your screen. Blur destroys the pixels at the frame, before the clip exists — enough left to prove an hour of motion, too little to read a word, and no unblurred version anywhere for anyone to find.
Integrity, quantified
Focused time ÷ elapsed time. Idle pauses, app-switch counts, presence checks. One honest percentage on every block you publish.
The community
A community of
deep workers.
One kind of post: finished hours of deep work, with the integrity score attached. Streaks, weekly leagues, and cheers from people who know exactly what a 96% hour costs. Watching is free. A voice in the square costs a membership and a finished hour.
Pricing
Cheaper than the hours
you’re losing.
The Instrument
$0forever ·
no caps, no trial
no caps, no trial
the whole tool, free
- Unlimited verified blocks & days
- Full history, analytics & exports
- Timelapse every block, clear or blurred
- Share cards & streaks
- Watch the public feed
The town square
The Commons
$8/mo · or $64/yr
($5.33/mo, −33%)
($5.33/mo, −33%)
membership: pay to have a voice
- Publish sessions to the feed
- Cheer, follow, weekly leagues
- 500-clip cloud library, kept 400 days
- Publish timelapses that play in the feed
- Founding badge · early access to Contracts
Guild
$8/seat/mo · min 5
for teams & cohorts
- Private leaderboard & challenges
- Commons membership for every seat
- Aggregate-only admin view
- SSO & provisioning
No ads, no algorithm, no engagement bait. Posting costs a membership and a finished hour. Coming later: Contracts, where you stake real money on your daily four and are charged only on a verified miss. Consent-first, appeal-always.
Questions
Fair ones.
Is this surveillance?
No. Surveillance is when someone else owns the camera. Here every signal is computed on your machine and thrown away, your screen is condensed to a thirty-second clip before anything is stored, and publishing is a deliberate act, per session, with a blur option that leaves nothing legible in any copy. Your boss can’t buy access to it — there is no dashboard to sell them.
Can’t I just cheat it?
You can jiggle a mouse past the idle check. You can’t jiggle a published recording. Verification layers: input activity, app focus, optional camera presence, and, when you publish, a community of deep workers who know what real hours look like. Cheat all of them and you’ve mostly cheated yourself out of four hours.
Why four hours?
It’s the number the deep work literature keeps arriving at: decades of research on deliberate practice and cognitively demanding work converge on a ceiling of about four truly focused hours a day. More than that is theater. Less than that, compounded, is a different life. Chamber is built around that number.
What exactly gets published?
Only what you choose, after you’ve watched it: duration, work type, integrity score, plus the timelapse if you opt in, at the fidelity you chose when the block began (clear or blurred). Private by default, forever.
If it’s free, what am I paying for?
The instrument is free forever and uncapped: verification, history, timelapses, everything. Membership buys your place in the Commons: publishing, cheering, leagues, and a cloud library big enough to hold a year of them. The fee is also the moderation model: when posting costs a membership and a finished hour, drive-by noise and engagement farming price themselves out.
Do I need an account?
Not to use Chamber. Verification, history, recordings, exports and share cards all work with no account, no email and no card. The app never even talks to a server. An account exists only for the Commons: publishing your hours, cheering, and the weekly leagues. When you do make one, your email is the login and stays private; the feed only ever shows an anonymous handle like @quiet_otter_482.
Where did the Mac app go?
It is paused, not cancelled. The desktop build reads signals a browser cannot see, which is what lets it verify the kind of work you are doing rather than only that you were there. It is coming back once it is signed and notarised with Apple, so that installing it does not start with a scary warning. Until then the browser version is the whole product, and it is honest about the difference: hours from the browser are marked present rather than verified.
Is Windows coming?
Yes. Chamber is built on Electron and the verification engine is platform-neutral, so Windows is mostly a packaging and permissions job rather than a rewrite. macOS shipped first because that’s where the beta cohort is. Leave your email above and you’ll hear when it lands.
The day is unclaimed.
Make an account and do one honest hour. If it holds, the Commons is waiting.
Free and uncapped, in your browser. Want to hear when the Mac app returns?