Detailed 3D models and floor plans from the LiDAR scanner in an iPhone Pro, built for professional heat loss and cooling surveys. Walk round the house; the survey is drawn as you go.
Precise 3D geometry the moment you walk the room: walls, windows, doors and ceiling heights, one floor at a time.
Heat loss and cooling need drawn directly on your scan: where the heat leaves, where the radiators reach, where the sun comes in.
The survey leaves as a file a surveyor can finish or an assessor can check: plan, fabric, heat loss, and the origin of every number.
Nothing is uploaded and there is no account. Surveys sync between your own devices through iCloud Drive if you choose.
Point an iPhone Pro at a room and walk round it. The LiDAR builds the walls, windows, doors and ceiling heights. One floor at a time, through every door.
Every scanner gets something wrong. Move a wall, add the window the blind hid, divide a floor scanned in one pass into its rooms, measure the cupboard it could not get into.
Heat loss for every room and the house, radiators judged at heat pump temperatures, and cooling loads with the sun counted by orientation.
Hold a tape against a few walls. The app records the readings, works out its own accuracy, and only then drops the caveat.
The scanner is what makes the geometry measured rather than guessed. Apple puts it in the Pro models only.
iPhone 12 Pro and 12 Pro Max, and every Pro and Pro Max since.
iPad Pro from 2020 onward: the 11-inch second generation, the 12.9-inch fourth generation, and later.
iOS 17 or later. No account, nothing uploaded, and your scans stay yours.
About a minute a room, and a tape measure for the spot checks.
A real house, scanned room by room in twelve minutes. Walls, windows and doors come from the scan. The constructions were set to a deliberate mix, solid walls and single glazing in the living room, an insulated kitchen, so the range shows.
The loss through every external wall and window, drawn where it happens. The living room's single glazing is the brightest thing on the floor.
Each radiator's reach against the cold surfaces it fights. A red radiator is one that cannot keep up at 45 °C, the temperature a heat pump runs at.
The summer peak by orientation, and a wall split judged against it. Same scan, same fabric, opposite season.
Walking round with a phone is the easy part. Judging the fabric and the radiators is the expert part. RoomRay is one app with two lenses on the same scan, and a scan can be handed from one to the other.
The first question an assessor asks, and the first a customer asks when a quote changes, is which parts were measured. RoomRay answers it line by line.
Read from the scan or the tape.
Worked out from measurements, such as a wall's thickness from its two faces.
A typical value for the kind of house. Labelled, never hidden.
Typed by a person who was there.
A measurement checked by hand.
First floor of the same house. Four rooms placed from the doorways the scanner walked through. The uninsulated loft over the front bedroom makes it the brightest room.
RoomRay is made by Just Sanity Limited in the United Kingdom, the people behind Grid Flow.
RoomRay is being tested on real houses now. Its measurements have not yet been validated against a tape, and the app says so wherever a number appears. It is for understanding a house, not yet for a quotation.
Ask to join if you survey houses for a living, or if you would just like to know what yours does with its heat.
An iPhone Pro or iPad Pro with a LiDAR scanner, on iOS 17 or later. A tape measure helps.