ADHD-friendly focus · 24 European capitals

Turn deep work into a journey across Europe

cuboo is the focus app that turns your work sessions into train rides. Board a train to a European capital, silence the noise, and earn a city stamp every time you arrive.

4.9★App Store rating
24capital stamps
0distractions on board
✓ Copenhagen
🛡 Apps blocked
cuboo Capital Departures board — pick a European capital to focus toward cuboo window seat — real scenery rolls past while your focus timer runs
What's on board

What does cuboo include?

cuboo Capital Departures board showing trains to Dublin, Bern, Berlin, Copenhagen, Prague and Oslo cuboo seat picker — choosing a seat in the quiet car and what to focus on cuboo blocking distracting apps behind a glowing lock during a focus session cuboo window seat — forest scenery rolls past with a focus timer counting up cuboo travel log — focus minutes per day and distance travelled by region
The ride

Three stops to deep focus

No streaks to babysit, no points to grind. Just board, focus, and arrive.

  1. 01
    🎫

    Board the train

    Pick a capital from the departures board, choose your seat and what you're focusing on, then board.

  2. 02
    🪟

    Stay in your seat

    Distracting apps lock, scenery rolls past, and a calm soundscape carries you through the session.

  3. 03
    🛂

    Collect your stamp

    Arrive at your capital and stamp it into your passport. Every finished ride is one more city explored.

Take the window seat

Hyperfocus, with a view.

cuboo wraps your work in the quiet ritual of a train ride — a window of moving scenery, the gentle clack of the rails, and nothing buzzing for your attention. It's the calm that makes deep work feel effortless.

🚆 Train🌧 Rain🌲 Forest🎧 Lo-fi
Your passport

Collect all 24 European capitals

From London to Reykjavík, every focus session that reaches a city earns a hand-drawn stamp in your passport. Fill the book and you've focused your way across the whole continent.

  • 24 capitals to unlock
  • 1 stamp per arrival
  • rides to get there
Start your collection
A passport page filled with hand-drawn stamps of 24 European capital cities including Amsterdam, Paris, Berlin, Rome and Reykjavík
Good to know

Questions, answered

What exactly is cuboo?

cuboo is a focus & productivity app that reframes deep work as a train journey across Europe. You start a focus session by "boarding a train" to a capital city; while you focus, distracting apps are blocked and calming scenery rolls past. Finish the ride and you collect that city's stamp.

Does it really block distracting apps?

Yes. cuboo uses Apple's Screen Time (Family Controls) to lock the apps you choose for the length of your ride. Try to open one mid-session and you'll see cuboo's branded "stay on board" screen instead.

Do I have to keep the app open the whole time?

No. Once your train departs, the session keeps running in the background. Lock your phone and get to work — cuboo keeps the timer moving and the apps blocked.

Which capitals can I collect?

All 24, including London, Paris, Amsterdam, Berlin, Rome, Madrid, Vienna, Prague, Copenhagen, Stockholm, Oslo, Helsinki, Reykjavík and more. Each one has its own hand-drawn stamp to earn.

Is my data private?

Your journeys live on your device first. Sign-in and cloud sync are optional, and your sessions are only ever visible to you.

Is cuboo on Android?

cuboo is built for iPhone today. Android is on the map — join from the App Store and you'll be first to hear when the next platform departs.

Your next train is boarding.

Trade the doomscroll for a window seat. Download cuboo and turn your next hour of work into a journey.