Explore the city
before you arrive.
Answer clues from home and collect places as cards. Then walk there, stamp them for real, and keep them forever — in your own passport. Learn something real about every place, whether you're traveling solo or on a class trip. See how it works.
YOUR FIRST CITY IS FREE — LEARNING THE STORIES IS ALWAYS FREE
Scout it. Walk there.
Stamp it forever.
Get the story first
Pick a city and answer a quick clue about a real place. Right or wrong, the story teaches you — and you collect it as a study card.
Walk there
No turn-by-turn. A compass bearing and a distance — “40 m · north-east”. Finding the place is part of the game.
Stamp it
Inside the spot's radius — 18 to 75 metres — the stamp unlocks. Answered at home? Instant. Not yet? One timed question, right there — then the card flies into your passport, gold-foiled, forever.
The bridge with the American name.
This bridge crossing the Alster is named after a US president. Why?
Renamed in his honor just days after a shocking event in 1963 — a US president's name, given to a Hamburg bridge.
🔒 Answer to unlock the card
This is the app.
Real screens from the current build — dark, glowing, made for the street.
One passport. A lot of game.
Your first city is free — studying is always free, everywhere.
Compass wayfinding
Bearing + distance instead of a boring route line. Inside the geofence, the stamp unlocks.
Collectible cards
Every place is a card: category colour, rarity frame, a date-stamp postmark. Complete a set, earn the seal.
Points & seals
On-site stamps earn points, complete a category and earn its seal — and no progress is ever lost.
Exploring with the app open?
It speaks up first.
Tell the app what you're into. While you're out with the app open, a quiet nudge points you to nearby stories — rolling out with the first release: “Something's close. Want to explore it?” No background scanning. No server remembers where you've been.
TAP WHAT YOU'RE INTO — LIVE FROM THE APP
5 of 11 categories shown here — pick any of all 11 in the app.
Something's close. Want to explore it?
They see what.
Never where.
Connect with a QR code or a short code. They see what you collect — never where you are right now. Stamp the same spot as a friend and you both earn a shared Duo card.
One code. Whole city. Everyone plays.
Multiplayer — join with one code and play the city together. Friends, a class, or a hostel group, live at the same time. No separate account needed.
- One code. The host shares a short code — everyone joins in seconds, no sign-up.
- Teams, live. Players split into teams; the leaderboard updates as stamps come in.
- Built for groups. Friends on a trip, a school class, or a hostel game night — same code, same city.
Class trips, hostel game nights, team events, birthdays: the host builds the route in the groups & classes portal, everyone joins with a code — no accounts needed. Team score is the average, so every player matters. Already a host? Sign in as a host.
Pick your lens.
Hover a tile — the whole page tints along. Every category is its own collection and its own guide.
Stamped like a real passport.
Answered the clue at home? The card is yours the moment you arrive. Didn't? Answer it right there. Either way — step inside the spot's radius — 18 to 75 metres — stamp it, and it lands in your passport for good.
Made for explorers.
Built for teams too.
Travel like a collector
Study a city on the sofa, hunt it down on foot. Every place you stamp becomes a card in your passport — across every city, forever.
Start exploring For groups & classesRun a live city game
Teachers and organisers build their own tour, split everyone into teams, and race through the city with a join code. Plan it on the web.
Plan a group gameEvery first city is free to start.
No subscription trap — here's exactly how it works.
- Your whole first city — every spot, every category
- Studying is always free — no clue limit, in every city
- Friends, passport, points — all included
- Unlock any city after your first
- All game modes & Jokers
- Every set, every seal
Prices live in the App Store — school, hostel & agency plans run via the Groups portal.
Live today: Hamburg (DE) · lighting up next: Berlin, Amsterdam, Lisbon, Vienna — the globe above shows the ambition, not today's coverage.
Before you ask.
Do I have to study before the trip — or can I just show up?
Both work. Study from the sofa and stamp fast on arrival, or walk up to any spot and answer the clue right there. Studying first just makes you faster.
What happens if I answer wrong?
Nothing is lost. You keep a reduced study card and the story still teaches you — your points never go down.
Does it work offline / kill my battery?
Studied cards work offline. The map checks your position only while you're exploring — no constant background tracking.
iOS and Android?
iOS first via the App Store; Android follows. Group hosts plan on the web either way.
What age is it for?
Anyone who can walk a city with a phone. Class games are built for school trips — guests join without accounts.
The city is waiting.
Your passport is empty.
Get the app, pick a city, collect your first three cards tonight.
Out now on the App Store.
We'll email you once, at launch.