# I'm 12. I shipped my AI app on a phone. Last night, 5 strangers around the world signed up while I slept.

> Source: <https://dev.to/koda2026/im-12-i-shipped-my-ai-app-on-a-phone-last-night-5-strangers-around-the-world-signed-up-while-i-4mpd>
> Published: 2026-08-22 23:51:01+00:00

Hey everyone, Harun again — the 12-year-old who built a full-stack AI SaaS (KODA) entirely on a POCO C55 Android phone with ₹0 budget.

Just 24 hours ago, I posted my first story here on Dev.to. I shipped the app, went to sleep that same night with zero stranger users. I woke up today, checked my Supabase dashboard... and found 5 new accounts. Real humans I have never met.

I'm not sharing their emails or any personal info (user privacy is sacred, even at 5 users 😤), but the AGGREGATE data taught me more than any tutorial ever has:

Signups happened at 4:53 AM my time (India). That means people in Europe and the Middle East were awake, browsing this community, and clicking my link. Dev.to is truly global. 🌍

Almost all of them ignored the text input and pressed my "🆘 Explain like I'm 5" button first. That single observation taught me the "Blank Canvas Fear": strangers freeze in front of an empty chat box. They don't know what to ask — so they click the most interesting button to test the engine.

**The fix:** Yesterday, right before I went to sleep, I shipped clickable starter prompts ("Write a Python game in 10 lines", "What is an API?") so new users never face a blank canvas again.

Supabase sessions persisted. They literally went to sleep with my app open on their screens. That was my first taste of real retention.

If you're building something and you're stuck at "nobody is using it" — keep going. The strangers are out there. They're just in a different timezone, asleep, waiting to wake up and find your link.

Try KODA if you want: [koda-aicodementor.netlify.app](https://koda-aicodementor.netlify.app)

Thanks for reading. Now back to my homework. 😂