Mobile games & apps — Istanbul
A morning read in forty seconds. One puzzle board in ninety. A blood-pressure log your mother can talk to. Four products out of Istanbul, none of them built to be left open.
Products
Open today
A session
The work
The four people you would still be playing with next year. Found by skill, by how they talk, and by who is actually online at 23:40.
eonaapp.com
The smallest social app we could build. One number a day, shared with exactly one person. Then it closes.
Product page
For the daily phone call that starts with "Mum, what was your blood pressure?" Her log, your phone, each of you in your own language.
Product pageOne board a day. Ninety seconds to solve it, and the rest of the evening to argue about it.
Ask for a seatInside the work
08 screens · scroll sideways
How we play
Istanbul, since 2026
01
Everything we ship has a last screen, and it comes fast. A morning, a board, a session, a reading. You put the phone down and go back to your life, and we count that as a win, not a churn event.
02
A mood check, a squad finder, your mother's blood pressure. Whatever the store category says, if it isn't a small pleasure to open, nobody opens it twice. We would rather be played than used.
03
You show up and do the thing, you get what you came for. We charge for the extras: the archive, the nicer look, the seat at the front. Never for the point of the app.
The name
Three and a half metres of purpose-built hardware whose only job was to play Nim, against a queue of people at the Festival of Britain. Its display was a wall of light bulbs showing the game and the machine's own arithmetic at the same time.
Ferranti built it to advertise computing. The public queued to play instead. That is the entire brief.
Play it — the panel is live
Three rows — 3, 5 and 7 lamps. You and Nimrod take turns.
On your turn, put out as many lamps as you like, but all from one row. Clicking a lamp puts out that lamp and every lamp to its right in that row.
Whoever puts out the last lamp on the board wins.
The machine never makes a mistake, so the opening move decides the whole game — and only one opening works. Stuck? Press Hint and it will name the move for you.
We hand builds to a small list of people who tell us the truth about them. Room for a few more.