Agents write the spec. App4 ships the app.
Describe what you want. An agent on our workers writes it as a compact App4 spec instead of thousands of lines of code — readable, reviewable, portable. Plugins wire the backend. It ships. Early access starts with one spec run of your own.
Early access
Join with Google — get your first run
Google account only. No card, no install: the run happens on our workers.
How it works
- JoinSign in with Google. You start with one run.
- Describe an app in one sentence"A booking app for a small barber shop with SMS reminders." That is the whole brief.
- Watch an agent write its spec on our workersOne spec at a time, platform-wide. You see your place in line, then the agent reading the plugin catalog and writing the App4 DSL — with the seconds and the cents it took.
- Share itEvery finished spec gets a public page on app4.ai.
- Invite friends, skip the lineEach friend who joins with your link buys you more runs and moves you up. Reach the threshold and you are in.
Earn your way in
| Who joins with your link | Runs | Score |
|---|---|---|
| A friend | +2 | +1.0 |
| A friend of that friend | +1 | +0.5 |
| One more level down | +½ | +0.25 |
| Rank | People in your tree | Launch discount |
|---|---|---|
| Builder | 3+ | 10 % |
| Architect | 10+ | 20 % |
| Founder | 25+ | 30 % for life |
Score 3 or five finished runs opens early access automatically. Every point also earns compute credit for launch. A referral counts only when the invitee signs in — clicks never do.