AI interior design apps have changed a lot in the last year. The newest image models keep your walls, windows and floor plan intact instead of inventing a new room, and a redesign that took a minute in 2024 now takes about ten seconds.
That also makes the choice harder. Most apps look similar on their landing pages, but they differ a lot on three things that matter: how faithful the result is to your real room, what you can edit after the first render, and how the pricing works once the free credits run out.
This guide compares seven popular tools on exactly those points so you can pick the right one in five minutes.
Quick answer: the best AI interior design app by use case
| If you want… | Best pick | Why |
|---|---|---|
| Realistic redesigns of your own room | Decor Copilot | Keeps walls, windows and layout; unlimited plan |
| A quick free experiment | RoomGPT | A few free credits, very simple |
| Bulk renders for many rooms | Interior AI | High render limits on bigger plans |
| Shoppable furniture in the design | ReimagineHome | Product recommendations built in |
| Prompt-driven edits and objects | Spacely AI | Strong text-instruction editing |
| 3D floor plans and furniture placement | Planner 5D / Homestyler | Real 3D modeling, not photo redesign |
Pricing below reflects the plans published by each company in 2026. Always check the vendor's pricing page before you buy — AI app prices change often.
What to look for in an AI room design app
Before comparing tools, it helps to know what separates a good app from a frustrating one:
- Structure preservation. The app should redesign the room you uploaded, not hallucinate a different one. Look for results that keep window positions, ceiling height and doorways.
- Editing after the first render. First renders are rarely perfect. Being able to say "make the rug smaller" or erase one object saves you from starting over.
- Real control over style. A list of 30+ styles is common; what matters is whether you can mix a style with your own instructions and reference photos.
- Honest pricing. Credit packs that expire, or "unlimited" plans with hidden low caps, add up fast if you are designing a whole home.
- Download quality and watermarks. Check whether free renders are watermarked and whether HD downloads cost extra.
1. Decor Copilot — best overall for redesigning your own room
Decor Copilot is built around one job: upload a photo of your room and get a realistic redesign that still looks like your room. It runs on Google's newest image model, which is noticeably better at keeping walls, windows and flooring in place than the older diffusion models many apps still use.
What stands out:
- Fast, faithful renders. A typical redesign takes around 10–15 seconds and keeps the room's structure.
- Edit instead of re-rolling. Refine works like a chat ("swap the sofa for a green velvet one"), and Magic Edit lets you paint over one area to erase, replace or restyle it.
- More than restyling. A wall painter to recolor individual walls, an AI floor plan generator, sketch-to-photo, and virtual staging for empty rooms.
- 30 design styles and 22 room types, plus your own instructions and reference images.
- 150+ free calculators for rug sizes, lighting, paint and a popular feng shui room layout generator.
Pricing: your first design is free. After that, Pro Unlimited is $14.99/month for unlimited designs (with a fair-use daily cap), or a $4.99 Day Pass if you only need a weekend of designing. See pricing.
Best for: homeowners and renters redesigning real rooms, and real estate agents who need believable staging.
Watch out for: it is a photo redesign tool, not a 3D modeling app — for exact furniture measurements use its calculators or a 3D planner.
2. RoomGPT — best for a quick free try
RoomGPT is one of the original AI room redesign apps. You upload a photo, pick a theme and get a result in seconds. The interface is about as simple as it gets.
Pricing: a few free credits on signup, then paid plans around $19.99/month for a limited number of renders.
Best for: casual experimenting and quick style inspiration.
Watch out for: older-style results can drift from your room's real layout, and editing options after the first render are limited.
3. Interior AI — best for high-volume rendering
Interior AI, made by indie developer Pieter Levels, offers 40+ styles and a fast upload-and-render flow. It has shifted toward higher-volume plans.
Pricing: published plans start around $49/month for a large render allowance, scaling to $99 and $199 for bigger volumes. There is no permanent free tier.
Best for: professionals and agencies who generate many images every month.
Watch out for: the entry price is high if you only need to redesign a few rooms.
4. ReimagineHome — best for shoppable designs
ReimagineHome focuses on turning a redesign into a shopping list, with furniture recommendations tied to the generated room. It also covers exterior and landscaping.
Pricing: tiered credit plans from roughly $14/month for a small number of credits up to agency plans around $99/month.
Best for: people who want to buy the look right after designing it.
Watch out for: credit-based plans can run out quickly while you iterate.
5. Spacely AI — best for prompt-driven editing
Spacely leans on written instructions: generate a room from scratch, then change colors or objects by describing them. It produces multiple alternatives per request.
Pricing: starter plans around $15/month.
Best for: users comfortable writing detailed prompts.
Watch out for: results depend heavily on how well you describe the change.
6. Planner 5D and Homestyler — best for 3D floor plans
These are not AI photo redesign apps in the same sense. They are 3D home design tools with AI features layered on top: you draw the floor plan, place real furniture models and render the room.
Best for: planning exact furniture placement and renovations with real measurements.
Watch out for: a steeper learning curve, and the result is a 3D render rather than a redesign of your photo.
Side-by-side comparison
| Tool | Free option | Paid from | Keeps your room's structure | Edit after render | Best for |
|---|---|---|---|---|---|
| Decor Copilot | 1 free design | $14.99/mo unlimited, $4.99 day pass | Yes | Chat refine + Magic Edit | Realistic redesigns |
| RoomGPT | Few credits | ~$19.99/mo | Partly | Limited | Quick tries |
| Interior AI | No | ~$49/mo | Partly | Limited | High volume |
| ReimagineHome | Trial credits | ~$14/mo (credits) | Yes | Some | Shoppable designs |
| Spacely AI | Trial | ~$15/mo | Yes | Prompt edits | Prompt power users |
| Planner 5D / Homestyler | Free tier | Varies | N/A (3D model) | Full 3D editing | Floor plans |
How to get the best results from any AI design app
- Shoot in daylight from a corner. A wide shot from the room's corner gives the AI the most context. Avoid fisheye lenses.
- Clear the clutter first. Piles of laundry and cables confuse the model and end up "redesigned" into odd objects.
- Add one or two instructions. "Keep my sofa, add warm lighting and plants" beats a bare style choice every time.
- Use reference images. A photo of a room you love is often clearer than any style label.
- Iterate with edits, not new renders. Fix one thing at a time so you do not lose what already works.
Frequently asked questions
What is the best AI app for interior design in 2026?
For redesigning your own room realistically, Decor Copilot is the strongest all-round choice thanks to structure-preserving renders, chat-style refinement and an unlimited plan. RoomGPT is good for a quick free test, and Interior AI suits high-volume professional use.
Is there a free AI interior design app?
Most apps offer a small free trial rather than a permanent free plan. Decor Copilot gives you a free first design, and RoomGPT gives a few free credits. Free renders are often watermarked.
Can AI design a room from a photo?
Yes. Upload a photo, choose a style or describe what you want, and the AI generates a redesigned version of the same room in seconds. The best apps keep your walls, windows and floor in place.
Are AI interior design apps accurate enough to buy furniture from?
They are great for choosing a direction — colors, style, layout ideas — but always measure before buying. Use a rug size calculator or a will-it-fit furniture calculator to confirm sizes.
Can AI help with feng shui?
Yes. Decor Copilot's free feng shui room layout generator shows where your bed, sofa or desk should go, and the AI feng shui redesign rearranges a photo of your own room around those rules.
Bottom line
If you want to see your actual room transformed — not a generic render — pick a tool that preserves structure and lets you edit after the first result. That is where Decor Copilot is strongest, and you can try your first design free.