Gardena's Bluetooth family — robotic mowers, water controls, sensors — ships with no physical interface at all. No buttons, no screen, no dial. Every configuration step, every schedule, every status lives in the app. Which means the app isn't companion software. It's the product's only interface.
Quality has nowhere else to live
On screenless hardware there is no "great product, average app." If the app confuses, the hardware itself feels broken — the user can't tell the difference, because for them there is none. The previous generation of the app proved it the hard way: confusing enough to hurt the products it served. That reframing repositions the design team, too — UX stops being a satellite of the hardware program and becomes part of product quality itself, the way a hinge or a housing is.
One number to rule the design
The revamp ran on a single measurable objective: the quickest configuration process on the market. Not the most features, not the richest dashboard — time-to-configured, treated the way hardware treats a spec. Every flow was judged against it, and the trade was explicit: fewer options up front, faster gardens. In validation, every tested user created an account and logged in within a minute. The app shipped natively on iOS and Android in February 2021 and holds a 4.3/5 App Store rating today.
The system behind the seam
The other structural decision: one design foundation, architected from the start to re-skin for Flymo and McCulloch. Stricter system discipline in exchange for triple the reach — a small design team serving a growing family of products across three brands without redesigning anything. That's the quiet lesson of the seam between hardware and software: when the app is the HMI, the design system is the factory.