Parts, readings and sign-off before you leave site.
What this is
Plantroom is an offline-first field service app for technicians who service HVAC, refrigeration, lift and telecom plant. It hands the engineer the day's dispatched jobs, walks them through a structured on-site form — readings, pass/fail tasks, parts pulled from van stock, before/after photos, customer signature — and closes the work order on the device, syncing it the moment signal returns. It is built for the people who spend their day in basements and plant rooms, and for the dispatch and billing teams waiting on their paperwork.
Plantroom is designed twice — once in the iOS idiom and once in Material 3 — rather than one layout wrapped twice for both stores.
| Dimension | iOS | Android |
|---|---|---|
| Specced against | Swift · SwiftUI | Kotlin · Jetpack Compose |
| Design language | The Apple platform idiom | Material 3, redesigned rather than skinned |
| Screens in this set | 2 | 1 |
2 in the iOS idiom and 1 redesigned in Material 3 — the same feature rebuilt, not the same layout skinned. Everything inside the frames is fictional demo data.
Today's Run, the job queue the technician opens in the van:
offline sync state with three queued changes, the day's progress, travel and van-stock summary, the running WO-4471 job with its live on-site timer, the three remaining stops with SLA, breakdown and PPM priority, the last stop swiped open to its red Can’t attend action, and the offline route card.
WO-4471 at Ashmore Tower, scrolled to the work and sign-off half of the structured form:
the asset the job was raised against — centrifugal chiller CH-02, with an NFC scan-nameplate action — the failed condenser approach temp task with its three-way Pass/Fail/N-A picker and auto-revealed note, the four instrument readings taken off the paired manifold gauge, before/after photo evidence queued for upload, parts consumed from van stock with the resulting stock levels and a reorder warning, and the captured customer signature above the close-out bar.
the same job queue and the same demo data as the iOS home screen, rebuilt in Material 3:
large top app bar, tonal assist and filter chips, outlined stat cards, an elevated tertiary-container active job card, three-line list items with a swipe-to-dismiss leave-behind, an extended FAB, a snackbar confirming the dispatch pull with an UNDO action, and a navigation bar with a pill indicator.
7 capabilities Plantroom is designed around. Each is an operating-system entitlement or a hardware path a browser tab either cannot reach or cannot be trusted to hold.
Design intent, not shipped implementation. Each line describes the target architecture this build is specced against.
Swift and SwiftUI on iOS, Kotlin and Jetpack Compose on Android, with the domain logic written once and consumed by both. A target architecture, not a shipped dependency list.
Plantroom is a design build, so there is nothing to buy on this page. If your team has a problem that needs this kind of depth — offline for a full shift, real sensors, work that has to happen with the screen off — tell us about it and we will tell you honestly whether we are the right people to build it.