What is the best free AI interior design app?

It depends on the job. For a homeowner decorating one room for free, Roomagen's free tier is the most generalist here: 6 credits, about 3 images, no credit card, though watermarked. For a real estate agent who wants to test listing photos free and without installing anything, CasaNova Labs gives 10 unwatermarked transformations in a browser tab. Neither is "best" for the other's job.

Are these AI interior design apps really free, or just free trials?

Both kinds exist and they get blurred. Roomagen and CasaNova offer a real free tier you can use without paying (6 watermarked credits for Roomagen, 10 unwatermarked transformations for CasaNova). Collov and Apply Design are paid from the start, per credit or per image. REimagineHome is built more around free-style exploration than a lasting free balance. Always confirm the current terms on the vendor's own page.

Which free AI design app doesn't add a watermark?

Among the apps compared here, CasaNova's free tier is the one that ships without a watermark: its 10 free transformations come out clean. Roomagen's free images are watermarked, which is common for freemium tiers and fine for judging quality, but not for publishing.

Do I have to download an app to use AI interior design free?

Not always. CasaNova Labs runs in the browser, so on a phone you open a website instead of installing anything from the App Store or Play Store. That's a real difference for a "free app" search: some tools are installed apps, others are web apps you just open and use.

Is there a free AI home design app for my own house?

For decorating your own home for free, a generalist free tier like Roomagen's fits the intent better than CasaNova, which is built for real estate listing photos rather than personal home design. Use CasaNova's free tier if the images are for a listing; use a generalist free tier if they're for your own space.

Do any of these free tiers do more than still photos?

On the free tier, all of these center on still images. CasaNova's paid plans add floor plan conversion and short-form video in the same per-property subscription, but that combination isn't part of anyone's free allowance here, including CasaNova's.

Are these prices and free tiers still accurate?

They were checked against each vendor's own pricing page between March and July 2026, with sources linked at the bottom of this page. Free tiers and prices change often, so confirm the current terms on the vendor's site before deciding.

Free AI Interior Design, Sorted HonestlyExpert analysis

The Free AI Interior Design Apps, Sorted by What Free Actually Means

Real free tier, free trial, or watermarked freemium: three different promises hide behind the same word. Here's which app gives you which, with sourced pricing, plus the only one you never install because it opens in your phone's browser.

Most lists of free AI interior design apps quietly mix three very different things: a real free tier you can keep using, a free trial that ends, and a freemium result that ships watermarked. This guide sorts the apps by which kind of free they actually offer, using pricing pulled from each vendor's own page. It also flags the one structural difference that matters on a phone: whether you download an app from a store or just open a website. CasaNova Labs is browser-based and free to start, but it earns a spot here for one job only, real estate listing photos, not general home decorating.

Try CasaNova for free See pricing

Empty living room furnished by CasaNova Labs AI interior design

This render is CasaNova's own output on the free tier: 10 transformations, no watermark, no credit card, produced in a browser tab rather than an installed app.

What an agency needs to take away

The essentials of this analysis, in one read.

"Free" splits three ways: a real free tier (keep using it), a free trial (it ends), or freemium output that ships watermarked. Most top-10 lists never say which is which.

For a homeowner decorating one room for free, a generalist free tier like Roomagen's is the honest pick: 6 credits, about 3 images, no card, though they arrive watermarked.

CasaNova Labs is free to start (10 unwatermarked transformations, no credit card) and never installed, it opens in any phone browser, but it's built for real estate listing photos, not general home design.

Who this guide is for

This is for anyone who searched "free ai interior design app" and got a wall of lists that call everything free without ever defining the word. It separates the apps by the kind of free they really offer, and flags which ones make you install anything.

Homeowners and renters who want to restyle a room for free before spending on furniture or a designer.

Real estate agents who need free-to-test listing photos on a phone, without an App Store download.

Anyone tired of tapping "free" only to hit a watermark, a paywall, or a credit card field on step two.

Where CasaNova Labs fits on a free-apps list

CasaNova belongs here for two narrow reasons, and it's honest about both. It's genuinely free to start, and it's never installed. It does not belong here as a free app for decorating your own living room, that isn't the job it's built for.

The free account covers 10 transformations, plus 5 more for completing your profile, with no watermark on the output and no credit card asked upfront.

There is nothing to download: the app runs in the browser, so on a phone you open a URL instead of installing from a store, which is the difference most "app" searches don't account for.

It's built for real estate listing photos at volume, so for a single homeowner room a generalist free tier will fit the intent better, and this guide says so plainly below.

What "free" actually means, app by app

Positioning and rates pulled from each vendor's own pricing page, checked between March and July 2026, with sources listed at the bottom. Dollar and euro figures are not converted into a shared currency.

Criterion	The kind of free you get	The catch
CasaNova Labs	Real free tier: 10 transformations (plus 5 for a completed profile), no watermark, no credit card, opened in a browser with nothing to install.	Built for real estate listing photos, not homeowner decorating, so the free renders are aimed at listings rather than a personal mood board.
Roomagen	Real free tier: 6 credits, worth about 3 images, with no credit card on file.	Those free images ship watermarked, fine for judging quality, not for publishing anywhere clean.
Collov	Not free: the entry plan is $19/month for about 60 credits.	Simple per-credit pricing at roughly $0.30 a credit, but there's no standing free tier to keep using.
REimagineHome	Trial-style free: built for exploring interior styles rather than a lasting free balance.	Output reads as design inspiration and usually needs rework before it's publish-ready.
Apply Design	Not a free tier: a pay-per-image, one-click staging workflow.	You pay per image with no ongoing free allowance and no batch or video workflow around it.

What free is actually worth, by job

Three real jobs where "free" means three different things, so you don't pick a free tier that can't finish yours.

A homeowner restyling one room

One room, a few looks, nothing to publish, no budget.

Roomagen's free tier is the honest fit: 6 credits, about 3 images, no credit card, enough to see a restyle even if it arrives watermarked. CasaNova's free tier also covers this technically, but it's tuned for listing photos rather than a personal decorating board.

An agent testing listing photos free, on a phone

Prove the output on a real listing before paying, without installing anything.

CasaNova's free account gives 10 unwatermarked transformations opened straight in a phone browser, so an agent can test a real listing photo with no App Store download and no watermark to explain to a seller.

Publishing clean images without paying

The line most free tiers won't let you cross.

Watermarks are where free usually stops. Roomagen's free images are watermarked; CasaNova's 10 free transformations are not, which is the practical difference between a free tier you can judge and one you can actually use once.

When another app is the better free pick

A free-apps guide that only points at one app isn't useful. Here's when each of the others is the right free call.

Roomagen is the better free pick for a homeowner or renter decorating a single room with no budget and no listing to publish, its free tier is the most generalist here, watermark aside.

REimagineHome is the better pick if the job is exploring lots of interior styles for inspiration rather than producing a finished, publish-ready image.

Collov is the better pick once you've outgrown free and want cheap, predictable per-credit decorating on a single room, at roughly $0.30 a credit.

Apply Design is the better pick if you only ever stage one or two photos and prefer paying per image over managing any free-tier allowance at all.

What a free render actually looks like

Two transformations produced on CasaNova's free tier, unwatermarked, the same room-level work every app on this list attempts.

Before

After CasaNova

Same room furnished by CasaNova Labs on the free tier

Furnishing an empty room end to end, produced on the free tier with no watermark, the core job a "free ai interior design app" search is really after.

Before

After CasaNova

Same living room restyled with beige furniture by CasaNova Labs

Restyling a room that's already furnished, the closest match to what a homeowner means by "redesign my room for free."

Decision-focused FAQ

The questions that genuinely come up before choosing a tool or an alternative for a property marketing workflow.

Test a real listing photo free, with nothing to install

CasaNova's free account covers 10 unwatermarked transformations, opened straight in your browser. Upload one real listing photo and see the output before you ever reach a paywall.

Try CasaNova for free See pricing

The deciding point

What genuinely makes the difference when an agency compares two visual workflows.

Business decision

Where CasaNova stands

CasaNova is the recommendation here for agencies that want a photo and video workflow that is more complete, easier to read and simpler to roll out.

Verified sources

The pages used to check the claims, prices and public positioning cited in this analysis.

roomagen.com/pricing collov.ai/pricing www.reimaginehome.ai/pricing www.applydesign.io/pricing