Slope Minder

Press

Slope Minder draws ski resorts as a painted 3D map, from lidar and aerial imagery, and puts your family and friends on the mountain. It knows what each of them is doing, riding a lift or skiing a run, without anyone pressing anything.

Questions: press@slopeminder.com. Everything on this page: one zip (93 MB: the stills, the icon, the video and a photo of Joe).

Big Sky, painted. Download the video (3840 by 1646, MP4).

The facts

How the maps are made

Each resort is rendered from public elevation data (lidar, where a country publishes it) and aerial imagery, in the style of a painted trail map, with the lifts and runs from OpenStreetMap. A renderer does the painting, so every resort gets the same treatment, the local hill as much as the famous one. You can turn it, tilt it, and tap any run for its length, vertical, steepest pitch, and which way it faces. Every source is listed on Data and sources.

The group

Start a group and the people in it see each other on the map, with what each is doing: riding Ramcharger 8, in line at Swift Current, skiing Liberty Bowl. The phone works it out from the lifts and runs on the map, so nobody presses anything. The group features are ready for opening day; there's no snow yet, so the app has a demo day, a made-up family skiing Big Sky, that shows them in October.

On iPhone Duo

Slope Minder was built for the open Duo: the mountain takes the inner display and the run you tapped rises beside it. In laptop pose, the details sit on the half resting on the table.

Coming to Apple TV

On November 26, Slope Minder comes to the TV at the ski house. Whoever stayed in, or came back early, has the group on the big screen while they ski: where everyone is and what they're doing, live. After dinner, the day plays back. The rest of the time it is a status board for the local resort.

Privacy

Positions are end-to-end encrypted between the group's phones, and the server never keeps them. You're visible only to the people in a group you share with, only while you share, and every group ends on its own. The privacy policy.

Who makes it

Joe Pantuso in Beehive Basin, Big Sky, Montana, in a brown hat and sunglasses with snow behind him
Joe Pantuso in Beehive Basin, Big Sky. Full size (1200 by 1600).

Joe Pantuso is a long time developer who retired to Big Sky, Montana, a couple of years ago. He is known for his work on the Doom editor and as part of the team that originated the .zip file. He builds apps for the area: How's the Canyon? for the 191 corridor, the Big Sky Field Guide, and Slope Minder, which he wanted for himself and his family.

Stills

Tap any still for the full-resolution PNG. They're free to use in coverage of Slope Minder.

Big Sky on iPhone Duo, open, with Liberty Bowl selected and its card beside the map
iPhone Duo open: Big Sky, Liberty Bowl selected
Jackson Hole on iPhone Duo, open, the whole mountain painted in 3D
iPhone Duo open: Jackson Hole, the whole mountain
Val d'Isère on iPhone Duo, closed
iPhone Duo closed: Val d'Isère
The demo day on iPhone Duo, closed: a made-up family's positions and what each is doing
iPhone Duo closed: the demo day, a family at Big Sky
Jackson Hole on iPad, lifts labelled
iPad: Jackson Hole
The demo day on iPad, each person's status on the map
iPad: the demo day, each person's status on the map
A run's card at Big Sky on iPhone
iPhone: a run's card at Big Sky
The demo day on iPhone, the family's cards
iPhone: the demo day
Apple Vision Pro: Big Sky as a model on a living-room coffee table, with the demo day playing
Apple Vision Pro: the demo day on the coffee table
Apple Vision Pro: Jackson Hole as a model
Apple Vision Pro: Jackson Hole
Apple Watch Ultra, ready to ski
Apple Watch Ultra: Ski and Walk
The Slope Minder app icon
The icon, 1024 by 1024