The most expensive interior design mistake is purchasing without adequate planning — the sofa that doesn’t fit, the paint colour that looked different in every photograph, the rug that’s too small for the seating arrangement it was meant to anchor. The apps that prevent these mistakes by allowing visualisation before commitment are more valuable than they’re typically given credit for.
Available at: roomstyler.com, App Store, Google Play
Best for: Planning room layouts in 3D before committing to furniture purchases.
Roomstyler allows creating accurate floor plans and then placing furniture in 3D to assess how pieces relate to each other and to the room’s proportions. The furniture library includes pieces from actual furniture retailers — making the planning exercise directly applicable to purchasing rather than requiring translation from generic shapes.
Available at: Houzz (houzz.co.uk), App Store, Google Play
Best for: Finding specific products seen in inspirational interior photographs.
Houzz’s “look for similar” functionality — which identifies specific products visible in inspirational photographs — is the feature that most usefully bridges the gap between aspiration and purchase. Finding the specific sofa in an image that inspired a living room direction is what turns inspiration into action.
Available at: App Store, Google Play
Best for: Augmented reality placement of IKEA furniture in your actual room before purchasing.
The IKEA Place app uses augmented reality — placing a virtual furniture item at actual scale in your actual room through the phone camera — to assess whether a piece works in the specific space before visiting the store. The specific use case it prevents: purchasing a sofa in the showroom and discovering it’s wrong for the room in scale or proportion.
Available at: App Store, Google Play
Best for: Assessing paint colours on your actual walls before committing to a pot.
Dulux’s augmented reality paint app allows applying any Dulux colour to a photograph of your actual room and assessing the result across different times of day and different light conditions. The app is not a perfect substitute for a physical paint tester (which remains the most accurate assessment before committing) but it allows narrowing the colour choice from hundreds to three or four candidates before buying testers.
Available at: App Store
Best for: Those who want to create and share professional-quality mood boards for interior direction planning.
Morpholio Board is used by professional interior designers and is the most sophisticated mood boarding tool available for non-professionals. The ability to clip products from websites, add them to a board with accurate colour swatches, and share the board for feedback produces a planning tool that prevents the gradual drift from intended direction that unplanned purchasing produces.
Interior design apps produce their value by preventing the expensive purchasing mistakes that inadequate planning causes. Roomstyler for 3D room planning before furniture purchasing. Houzz for finding specific products from inspirational images. IKEA Place for AR furniture placement in your actual room. Dulux Visualiser for paint colour assessment before committing. And Morpholio Board for professional-quality mood boarding that maintains design direction across a project. Use the planning apps before visiting showrooms — the decision made with a floor plan and a mood board is more reliable than the decision made under the influence of the showroom experience.