Two apps, one hackathon, one solo founder: 369 Zone and Three Seals at Shipaton 2026

Two months, two finished apps, one founder. That is our Shipaton 2026.

Shipaton is the hackathon RevenueCat runs for apps that ship for real. You do not enter a demo. You enter an app that people can download. Commercium is an independent studio in London, led by a solo founder, Haluk Demirhan, and we entered twice: a card game that did not exist before the hackathon, and a new major version of a writing ritual.

Here is what got made.

The two months in numbers

• 2 apps entered, both finished and shipped
• 13 animal fighters in Three Seals, each one a hand-built, animated character
• 3 masters to beat, and belts from white to black, then dan ranks
• 11 languages in Three Seals, 10 inside 369 Zone
• 66 store screenshots for Three Seals: six for each of 11 languages
• 195 App Store screenshots and 39 preview videos for 369 Zone: one set for each of 39 languages
• 3 platforms from one Three Seals codebase: iPhone, iPad and Android
• 0 ads in either app

Three Seals: Dojo Duel

Three Seals is a card duel in a temple at night. Fire burns wood, wood soaks up water, water puts out fire, and if the elements match the higher number wins. Every clash you win puts a seal on your shelf. Three seals and the duel is yours. A duel takes two minutes; both fighters bow at the end and say “Oss!”.

Everything in it was made in the hackathon window:

• The game. The rules, three masters with their own habits, three special moves, a daily duel and monthly events. Losing never takes points away.
• The cast. Thirteen karate animals, a wardrobe of outfits and a scene for every clash.
• The reach. Eleven languages, and one codebase that ships to iPhone, iPad and Android.
• The business. The whole game is free. You pay for how you look, never for how strong you are: a Dojo Membership and tokens for outfits, run through RevenueCat. Belts, masters and card power are never for sale.
• The voice. No sound library had a good “Oss!”, so the one in the game is our founder’s own.

Six screens, eleven languages

11 languages × 6 screenshots = 66 store screenshots

Each screenshot teaches one rule of the duel, from the element cycle to the black belt, and each one is drawn from the game itself in the player’s own language.

The hardest part was not the game. It was making a new player understand, in thirty seconds, why they had just won. Early players did not know what the marks on their shelf meant. Now the shelf shows element tiles with empty places for the seals still missing, and the winning three light up one by one before the bow.

Where to find it:

• Entry: Three Seals on Devpost
• Android: Three Seals on Google Play, free to download
• iPhone and iPad: coming soon. threeseal.com will have the link on the day.
• Guide: how to play Three Seals

369 Zone

369 Zone is a quiet app for one habit: write one intention three times in the morning, six in the afternoon and nine at night, for 21 days. A short breathing exercise comes first. If you are stuck on the wording, an AI helper offers a line that you can edit, refine or replace. The words stay yours.

For Shipaton it reached version 2.0:

• Home Screen widgets that keep today’s intention and your 3-6-9 progress in view.
• Ten languages inside the app.
• A store page in 39 languages, each with its own screenshots and preview video.
• Reminders at the hours you choose, and a 21-day calendar that shows the streak.

One store page, 39 languages

39 languages × 5 screenshots = 195 store screenshots + 39 preview videos

Someone who opens the App Store in Tokyo, Warsaw or Riyadh sees 369 Zone in their own language: the title, the description, every screenshot and the video.

Where to find it:

• Entry: 369 Zone on Devpost
• App: 369 Zone on the App Store, free to download
• Demo: watch the 369 Zone video
• Guide: the 3-6-9 method explained

Why a hackathon

A deadline that asks for a shipped app, not a demo, suits a studio like ours. It decides what is in and what waits, and it puts the work in front of people. One of these apps is nearly silent. The other is twelve seconds a turn with a squirrel across the table. Every app is its own world, and two months was enough to finish two of them.

See them, and support them

• Download the apps. Five minutes with either one is the best support there is.
• Leave a like or a comment on Devpost: Three Seals and 369 Zone.
• Share your thoughts. Write to us. We read every message.
• Pass it on to one person who would enjoy a card duel or a calmer morning.

Thank you to RevenueCat for the occasion, and to everyone who has tried the apps so far. Whatever the judges decide, we are proud of both, and there is more to come.