Interior AI Alternatives (2026): Cheaper & Free Options Compared

Interior AI is a genuinely good tool — built solo by Pieter Levels, fast at volume, explicit about its design modes, and priced without games. So why are you searching for an alternative? Almost always one of three reasons, and all three are visible right on its pricing page: the entry plan is $49 a month, there's no free tier visible on the current site, and the FAQ states plainly that refunds aren't offered because generation costs are high. None of that is dishonest — but if you have one room and a normal budget, it's the wrong shape of product for you.

Disclosure before the list: we build RoomCalm, one of the tools below. The comparison table uses each tool's own published pricing — every number here was checked against the live pages in August 2026, Decoratly's were re-checked on 26 September 2026, and where something couldn't be verified we say so instead of guessing.

The quick comparison

RoomCalm — if you have one real room

RoomCalm's bet is different from Interior AI's: instead of generating volumes of options, it keeps your actual room — walls, furniture, belongings — and restyles it, then tells you what to change first, in plain words. The first full redesign is free with no sign-up; after that most people take the $9 one-time pack of 25. There's no subscription unless you want one, and refunds are 14 days including digital products. The honest limitation: the licence is personal use, there's no commercial-output licence and no virtual-staging batch mode — if you're staging listings professionally, Interior AI genuinely fits better.

REimagine Home — the most generous free trial

REimagine Home gives every new user 5 free designs with no card, and says outright that free designs run on the same AI as paid ones — the cap exists because compute costs money, not because free output is downgraded. That's the most honest free-tier framing in the niche. By default it keeps your room's structure fixed (walls, windows, ceiling lines), and paid plans are credit-based, advertised in the $14–$99/month range. Check the refund terms before subscribing: refunds apply only within 7 days of the first purchase and only if you've used fewer than 10 credits.

Decoratly — the cheapest unlimited plan here, with caveats

Decoratly now sells one plan: as of 26 September 2026 its homepage lists $12.99/month for unlimited rooms, with 2 free AI designs on your own room first and no card to start. The one-time passes it sold until at least August 2026 ($3.99 for one room for 7 days, $9.99 for 30 days, no auto-renewal) are gone, and we'll miss them — a pass is a parking meter, you pay for the hour you're actually there, and that suited a one-room job. Two real wins, though: $12.99/month unlimited undercuts RoomCalm's $15/month unlimited plan, and 2 free designs beats our 1. The caveats: free designs are watermarked, web-resolution and limited to six starter styles; the site disagrees with itself on whether you need to hand over an email, whether free designs carry a watermark, and how many rooms it has done (500K+ on the homepage, 25,000+ on its free-app page); and its refund policy still describes a one-time $12.99-for-30-days purchase the homepage no longer sells. Check what the checkout actually says before paying. We reviewed it in depth separately.

RoomGPT — the biggest name

RoomGPT is the tool most people try first, and the comparison deserves its own page — we wrote it, including the one difference that decides it and the current state of its free tier.

How to choose in 60 seconds

• ·Professional volume, commercial spaces, staging listings → stay with Interior AI. That's what $49/month buys, and it buys it well.
• ·One real room, want to keep your actual furniture, small budget → RoomCalm. Free first, $9 one-time after.
• ·Want the most free tries before deciding → REimagine Home's 5 free designs, no card.
• ·Want the cheapest unlimited plan → Decoratly at $12.99/month, eyes open about the watermarked free tier and the pages that contradict each other.