Your Vibe-Coded App Isn’t Production-Ready — Until You Smoke Test It

How to catch brutal bugs, skip the unit test rabbit hole, and ship with real confidence.

Shipping an AI-built app that works on your machine but breaks for real users? You’re not alone. Here’s a 3-phase, 12-test smoke testing system that catches the bugs unit tests miss — mobile layout failures, production environment mismatches, data edge cases, and the silent authentication breaks that only appear after deployment. No coding required, just a browser, a phone, and 30–60 minutes.

Have you ever launched an app and watched it break in ways you never imagined?

I have, more times than I can count.

My first app, an AI image search tool, only worked on my computer. I had to kill it a year later.

App #2 reached hundreds of users before crashing in production.
App #3 broke just before I announced it, caught it in time, barely.
Apps 4, 5, and 6? Each found new ways to fail.

Here’s what surprised me: none of them failed because I skipped unit tests.

They failed because I hadn’t systematically walked through what real users would do. I didn’t test flows on real devices. I didn’t try to brea…