What Kanai is
Kanai is an AI 3D model generator built for interior design, and it lives entirely on your phone. Instead of guessing whether a new sofa fits or whether a paint color works against your floor, you scan the actual room, drop in 3D furniture, and look at the result from any angle. The headline on its site sums up the pitch bluntly: kill the measuring tape. The app captures your space in three dimensions so you stop wrestling with a tape measure and a notepad full of numbers that never quite add up.
It sits in the AI interior design category, but the angle is practical rather than purely artistic. Kanai is aimed at homeowners, renters, and design enthusiasts who want to preview a makeover before spending money, plus anyone working alongside a professional designer who needs to see the plan, not just hear it described.
How Kanai works
The workflow has three core moves. First, Instant 3D Room Capture uses your phone camera to build a 3D model of the room you are standing in. Second, you transform furniture photos into 3D: snap or upload a picture of a chair, lamp, or cabinet, and Kanai converts it into a 3D object you can place in the scanned space. Third, you visualize the entire design, arranging pieces and walking around the layout virtually before committing to anything.
Once an item is in the room, you can adjust its placement, size, and color, so a piece you found online can be tested in context. Layered on top of that manual control is the AI side: Kanai generates room makeover suggestions and design recommendations aligned to your preferences, giving you a starting point instead of a blank scene.
Standout features
Instant 3D room capture
The room scan is the foundation of everything else. By turning a real space into a navigable 3D model from your camera, Kanai removes the most tedious part of planning a redesign. No floor plan, no manual dimensions, no spreadsheet of wall lengths.
Photo-to-3D furniture conversion
This is the feature that makes Kanai more than a mood board. You take a photo of furniture and the app produces a 3D version of it, which you then position inside your scanned room. Being able to adjust size and color means you can test variations of the same piece without owning any of them.
AI-powered room makeovers
For people who want direction rather than a clean slate, Kanai generates design ideas and full room transformations. The recommendations are meant to reflect your taste, so the AI acts more like a suggestion engine than a fixed template.
Collaborative design
Designs are not locked to one person. You can share a 3D layout with a partner, a roommate, family, or a hired designer so everyone reviews the same visual and refines it together. That shared reference cuts down on the back-and-forth that usually comes with describing a room over text.
Who it is for and where it fits
Kanai makes the most sense for everyday people planning a real change to a real room: a couple setting up a first apartment, someone redoing a living room, or a renter who wants to test a layout before hauling anything home. It is also useful as a communication bridge with a professional, since a scanned room plus placed furniture is far clearer than a verbal brief.
It is honest to note the boundaries. Kanai is currently an iOS app, so Android users and anyone wanting a full desktop CAD environment are not the target. It leans toward fast, visual room planning for consumers rather than the precise documentation, material schedules, or construction-grade detail that dedicated professional design suites provide. For quick what-if decisions about furniture and layout, that tradeoff is the point; for technical specs and contractor handoff, you would pair it with a more specialized tool.
Pricing
Kanai is distributed through the Apple App Store and follows a freemium approach: you can download and try it, with more advanced capability typically gated behind paid access. Public listings reference a free trial, but specific subscription tiers and prices are not consistently published, so check the App Store listing or the official site for current pricing before you subscribe.
Verdict
Kanai is a focused, mobile-first take on AI interior design. The combination of a real 3D room scan, photo-to-3D furniture, and AI makeover suggestions makes it genuinely useful for testing ideas before money changes hands. If you live on iOS and want to see a room redesign rather than imagine it, it is a strong fit. If you need professional-grade drawings or work on Android or desktop, treat it as a planning companion rather than a complete solution.
