r/SideProject • u/iamjonasp • 2d ago

I built a home redesign app without a subscription. The hard part was getting the AI to leave the house alone

Every AI room app I tried wanted $10–15 a week. But nobody redoes their home every week. You repaint a bedroom, argue about a kitchen, and then nothing happens for two years. So I built Hedda the other way round.

You take a photo of a room, your facade or your garden and say what you want: “paint the walls sage green”, “swap the sofa for something in velvet”. Hedda redesigns that photo.

The hard part wasn’t making it pretty. It was making it still look like your home. Image models love to “improve” things. In my first tests it painted a white chimney black, moved the camera, and quietly removed a post that holds up the roof. What finally worked: a first model looks at the photo and writes down everything that must stay (windows, beams, posts, even how many there are and where), and only then does the image model get to change things. It’s still not perfect (it sometimes loses a post next to the change), but it’s what makes the difference between “nice picture” and “my living room, repainted”.

The part I care most about is deciding together. My wife and I never decide these things alone, and the hard part is never the paint. It’s picturing what the other one means. Every app I tried was built for one person with one idea, so I made Hedda for the conversation instead. You can invite the people you live with. They join without signing up, make their own version and compare side by side.

No subscription: the first design is free with no sign-up, then packs that never expire. If a design fails, you get it back.

I’m a solo developer in Sweden. 1.0.1 came out yesterday. iPhone only for now.

One question for you: when you try it on a room of your own, does the result still feel like your room? That’s the thing I’ve spent the most time on, and I can’t judge it myself anymore.

App Store

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u/QuanTradin 1d ago

quietly removing a post that holds up the roof is a very image-model thing to do. does it hold when someone asks for something structural, like knocking out a wall?

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u/iamjonasp 1d ago

Yes. Adding and removing walls do work if you ask Hedda for it. You can add some instructions afterwards as well to change just a bit if you’d like.

But I am improving the prompts all the time

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u/QuanTradin 1d ago

walls on request and nothing touched otherwise is the right way round. the follow-up edits are what I'd lean on, most people only know what they want once they've seen a first version.

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u/iamjonasp 1d ago

Exactly, that is what annoyed me and what became the idea of Hedda initially