Guide · Design apps

Best AI Home Design Apps (2026): Tested & Compared

Upload a photo, pick a style, get a believable "after" in seconds. We ran the same rooms through the main contenders and checked every price against vendor pages in September 2026.

LMBy Lena Moreno, Founding Editor · Reviewed by Peter Kim, Realtor · Fact-checked Sep 2026 · Last updated Sep 16, 2026

The money moving into this category says it all: AI interior design is an estimated $3.28 billion market in 2025, heading to $15 billion by 2033[1] — inside a smart-home market projected to grow from $147.5 billion to over $848 billion by 2034[2]. And demand is personal: Houzz's 2026 survey found 54% of US homeowners renovated in 2025, with a median spend of $20,000[3]. AI's role in all that spending: showing you the result before you commit.

How AI room design works

Interior-design AI is image generation tuned for rooms: upload a photo of your space, pick a style ("japandi", "mid-century", "coastal"), and the model repaints walls, swaps furniture and re-lights the room in the same geometry — mostly. The output is a moodboard-grade visual, not a floor plan with dimensions; that's why every serious workflow pairs AI visuals with a tape measure and a professional for anything structural.

The comparison at a glance

ToolBest forFree tierPaid fromWatch out
Interior AIPhotorealistic restylesLimited trial$49/mo Pro · $99/mo Premium · $199/mo UltraYearly tiers $349–$599[4]
REimagineHomeFast room restyles, credits modelTrial$14–$99/mo30–1,200 credits per tier[5]
Spacely AIBudget experiments40 free creditsPacks from $9; subscriptions from Jul 2026Credit packs $9/200–$150/5,000[6]
HomestylerFloor plans + AI renderingFree tierPro+ $6.80/mo4K renders $1.99 each[7]
Planner 5DFull floor-plan designFree tierPremium $19.99/moProfessional $49.99/mo[8]
IKEA KreativFree furniture preview in your roomFree—IKEA catalog only; AI redesign added 2025[9]

The mainstream option: IKEA Kreativ

IKEA Kreativ deserves its own section because it solves a different problem: instead of imagining a new room, you place real IKEA furniture in your actual space via your phone camera — free, since launch, with an AI redesign layer added in 2025[9]. It is the least glamorous tool here and the most immediately useful if you are actually buying furniture. The trade-off: you are previewing one brand's catalog.

Floor plans and color palettes

Two adjacent needs are worth separating. Floor plans: Homestyler and Planner 5D are the real planners here — dimensioned layouts, not pretty pictures[7][8]. Color: the image tools handle palettes by example (upload a room, ask for "sage and walnut"), which beats swatch guessing — but always confirm paint colors against physical samples in your own light. Professional associations like NKBA and ASID exist precisely because color and layout decisions have technical depth AI can't replace[10].

Free options, honestly

The free path is real: IKEA Kreativ costs nothing[9], Spacely's 40 starter credits cover a few rooms[6], and Homestyler's free tier handles casual floor plans[7]. The pattern: free tiers cap generations or resolution exactly where you get serious. Budget $10–$50/month once a remodel is real — that's the cheapest part of the project.

Bottom line

For "what could this room become?" — any of the image tools in minutes. For "will this actually fit and pass code?" — a floor-plan tool plus a professional. AI shows the destination; it doesn't pour the foundation.

Frequently asked questions

What is the best AI interior design app?+
Depends on your goal: Interior AI and REimagineHome for photorealistic restyles[4][5], Spacely or Homestyler for budget-friendly work[6][7], IKEA Kreativ for free furniture previews[9].
Is there a free AI room design tool?+
Yes — IKEA Kreativ is free[9], Spacely starts with free credits[6], and Homestyler has a free tier[7]. Free tiers cap generations or resolution; paid plans unlock serious use.
Can AI design my whole house?+
AI can moodboard and restyle every room, but it doesn't replace an architect, contractor or code review. Use it to visualize; verify structurally with professionals.
How much do AI home design apps cost?+
From $0 (IKEA Kreativ) to $199/month (Interior AI Ultra). Most casual users land between $9 and $49/month. Prices verified September 2026 — check vendor pages before subscribing.
Which app has the best AI kitchen design generator?+
For kitchens specifically, start with a floor-plan tool (Homestyler or Planner 5D) for dimensions, then use an image tool for finish styling. Our room makeover guide has the full kitchen workflow.

Sources

All claims verified September 2026. Prices change — confirm on vendor pages.

  1. Grand View Research — AI interior design market ($3.28B 2025 → $15.0B 2033, Feb 2026): grandviewresearch.com
  2. Fortune Business Insights — smart home market ($147.52B 2025 → $848.47B 2034, Feb 2026): fortunebusinessinsights.com
  3. Houzz 2026 survey — 54% of US homeowners renovated in 2025, median $20k: houzz.com
  4. Interior AI pricing (official): interiorai.com
  5. REimagineHome pricing (official): reimaginehome.ai
  6. Spacely AI pricing (official): spacely.ai
  7. Homestyler pricing (official): homestyler.com
  8. Planner 5D pricing (official): planner5d.com
  9. IKEA Kreativ (free; AI redesign 2025): ikea.com
  10. NKBA planning guidelines; ASID 2025 State of Interior Design: nkba.org · asid.org