Premium manufacturer Schlüsselfeld, Germany Q1 2025

The control app for a luxury motorhome, designed to match the vehicle

A German manufacturer of luxury motorhomes, building around 400 vehicles a year at Schlüsselfeld-Aschbach since 1985.

mobile app UX/UI

Five iPhones in a row showing the Concorde app: a route map, the welcome screen, the Carver vehicle dashboard, a vehicle location map and the lights controls

80 screens: of UX and UI design handed to Solvesall to build from
Q1 2025: the one quarter the whole design was delivered in
iOS + Android: shipped from our design and live since October 2025

The challenge

Concorde has built motorhomes at Schlüsselfeld-Aschbach since 1985, and builds around 400 a year. The vehicle is the argument: the joinery, the materials, the way one is put together. The app that controls it had to hold the same standard. Concorde Smart Link is the interface to the vehicle's systems. Solvesall built the connected hardware and the production software, and our job was the UX and UI. Two things made that specific. The app controls physical objects, so every control changes something real: heating, power, lighting, water, the state of the battery. It also sits inside a product the buyer chose for how it looks and feels, so it had to read like part of the interior rather than like the diagnostics behind it. Range was the third constraint. Concorde's line-up runs from the Credo on a Fiat Ducato to the Centurion on a Mercedes truck chassis. The screens had to hold across that range and absorb new models as they arrive, rather than being redrawn for each one.

Concorde app screens laid out at an angle: the welcome screen, the Carver dashboard, the exterior controls diagram and the vehicle map

The Concorde app's Carver dashboard held in one hand, showing the motorhome, its temperature and humidity, and the lights, energy, water and heater controls

What we did

1Make a physical-control app feel native, and feel like the vehicle
Smart Link switches real hardware, so the design was native first. A control that changes the state of the vehicle should behave the way a control the operating system shipped would behave, not like a web page in a wrapper. The surfaces were then drawn to sit with the interior. The materials, the tone and the restraint of a Concorde cabin are what the buyer chose, and the app is the part of that cabin they hold in their hand for the whole trip.
2Eighty screens and a component library, handed to Solvesall to build
The design covered the app in full: 80 screens in Figma, delivered as a component library rather than flat artwork, which is how the studio hands over every mobile and web build so the decisions in Figma transfer into code. Solvesall own the connected hardware and the production software, and they shipped it. Concorde Smart Link went live on the App Store and Google Play in October 2025 in English, French and German, and picked up support for new Concorde models in April 2026.

The Concorde app's exterior control screen, with icons for the awning, satellite dish, battery and door locks placed along the side of the motorhome

The call we made

Design the app to feel native to the phone and to the vehicle's interior, rather than as a control panel for the systems underneath.

The functional read of Smart Link is switching and monitoring: heating, power, lighting, water, battery state, error codes. Designed straight from that description it becomes a utility, and a utility would have been quicker to draw. The reason it is not one is that the app is the only part of a Concorde a buyer holds in their hand, every day of a trip. A screen that looked like machine diagnostics would have been the one cheap-feeling object in a vehicle chosen for the opposite. So the interface was designed to the standard of the interior, and the machine data was arranged to suit that.

What we built

Platforms: iOS Android
Stack: Design only. Solvesall own the production stack.
Design system: Figma component library, structured so the design decisions transfer into code
Timeline: Designed Q1 2025. Released to both app stores 24 October 2025.