AI Builds the App in 5 Minutes. So Why Can't I Ship It?

"I told the AI what I wanted and it spat out an app in five minutes." You've seen that video, right? So have I. And honestly, it made me a little anxious. Everyone's cranking out apps and I'm the one standing still.

So I went and built one myself. A handful of mini-apps, all the way to launch. And here’s the one thing I figured out: building really does take five minutes. But that’s not the whole job.

Let me walk you through building one app, and you’ll feel exactly what I mean.

I just built it. It came together in a single evening

Let’s say the idea is a “one-screen app that rounds up this week’s convenience-store BOGO and 2-for-1 deals.” Wouldn’t it be nice to know what’s on sale before you walk in? Everyone’s had that thought. It’s simple and clear, which makes it perfect for a mini-app.

I handed it to the AI. Lay out the screen, add category filters (snacks, drinks, lunch boxes), drop in a search bar. And honestly, in one evening I had a working app. Swipe through and the deals scroll right by. It even looked the part.

Up to here, the videos were telling the truth. But the real story starts right after.

Except there was no “real data” to fill the screen

The screen looked fine, but there was no actual deal info to put in it. Convenience-store chains don’t hand you a tidy deals list over an API. The data’s scattered across each brand’s app and individual stores, and every format is different.

So what was left? Me, every week, collecting the deals by hand, cleaning them up, and uploading them. While building, I figured “I’ll fill in the data later.” But come launch, that “later” turns into a chore that comes back every single week. Deals reset weekly, so miss one week and the app’s showing stale info.

Before writing any code, I should've asked: "Who fills this in every week?"

Miss one week, and the app lies

Say I got busy for a week and didn’t update it. Someone opens the app, sees “oh, this is BOGO,” walks to the store — and that deal ended last week. That person? Never opens this app again. I wouldn’t either.

For an app where “accuracy” is the whole point — prices, deals, dates — trust collapses the moment you’re wrong once. The screen looks fine, but it’s unusable. And here’s the scary part: if you fill it with AI-generated “sample data,” the screen looks so convincing that you don’t notice this problem until way too late.

One piece of data that's never wrong beats a hundred pretty screens.

I added login to keep users around, and then…

A one-and-done app feels like a waste. So you get greedy. “Save your favorite products,” “alerts for categories you follow,” “points for coming back.” And sure, the AI bolts all that on in no time.

But this is where the game changes. Saving favorites needs login, and login means personal data. A privacy policy, consent flows — they all come riding along. Add a reward like points and that brings its own review. The code takes half a day; getting it approved does not. (For the record, the slick copy AI loves to write — “guaranteed,” “100%,” “lowest price” — gets flagged more often than you’d think.)

A single feature can push your launch back by weeks. I only learned that after building it all.

And “while I’m at it” keeps creeping in

Because building with AI is so easy, you keep wanting to add more. A map of nearby stores, a price-trend graph, a wishlist, push notifications… it’s genuinely fun on the building side.

But what people actually wanted was one thing: “What’s BOGO this week?” The fancy features don’t move anyone, and all that added complexity comes back later as pure maintenance debt. As if keeping the data fresh every week wasn’t already enough.

What ships isn't the most elaborate version. It's the simplest one.

In the end, AI only did step 1

Put it in terms of the store app: the screen took one evening — but owning the data every week, keeping it accurate enough to trust, clearing the policy bar on login and rewards, and trimming the greed. All of that lived after that one evening. And honestly, most people (me included) stop right there.

An app is like an iceberg. What’s above the water is just a sliver.

“Build an app in 5 minutes with AI” isn’t a lie. It’s just that those five minutes are the tip of the iceberg. What decides launch and survival sits underwater, and AI doesn’t do that part for you. Owning the data, protecting trust, reading the policies, trimming the fat — that, it turns out, was the real “building.”

So the next time a “build an app in 5 minutes” video scrolls past, I’m trying not to panic. Everything fast is fast for everyone now. This is where it actually gets interesting.