Mobile apps for the field

Most of our work is mobile: Flutter and .NET MAUI on iPhone and Android, including BLE, USB, barcode scanning, and apps that have to work with no signal. We also build websites, desktop apps and Azure APIs when a project needs it. We're based in Leeds, UK, and happy to meet locally.

See recent work Get in touch

What we take on

Cross-platform mobile

Flutter and .NET MAUI on iPhone and Android — one codebase, with layouts that work on each screen size. We also move teams off Xamarin without stalling the release.

Hardware-connected apps

BLE, USB, Modbus, barcode scanning. Small native bridges so protocol work stays in Dart or C#, not scattered across platforms.

Field apps with no signal

Sync, photos and catalogues that keep working offline, then catch up when the connection comes back.

Web, desktop and APIs

Websites, Windows or Mac apps, and Azure APIs alongside the mobile work.

Recent work

Client names stay off this site. TripManifest is our own product, so that one is named.

Current

Industrial sensor commissioning

A phone, tablet and desktop app for calibrating and configuring industrial sensors — with a simulator so the screens could be finished while the hardware was still changing.

  • Flutter
  • USB
  • BLE
  • Modbus
  • iOS
  • Android
  • Windows
  • macOS

Current

Field engineering rewrite

A large Xamarin field app rewritten in Flutter to work with no signal — photos, annotations and sync included.

  • Flutter
  • offline
  • iOS
  • Android
  • Windows

2025

Last-mile logistics apps

A pickup and drop-off app on a two-month deadline, then identity and an offline ordering module inside an existing MAUI product.

  • .NET MAUI
  • barcode scanning
  • PKCE
  • offline
  • iOS
  • Android

2023–24

Home energy monitoring

A BLE SDK and in-app setup so installers and homeowners can talk to in-home energy hardware.

  • BLE
  • mobile SDK
  • iOS
  • Android

TripManifest

A packing app we own: kit inventory, reusable manifests, and trip workflows on iPhone and Android. Built with Flutter, with optional cloud backup on Azure.

See the product tripmanifest.co.uk
TripManifest home screen with the current trip, weather, and shortcuts.

Get in touch

We're based in Leeds, UK, if you’d rather meet in person. A CV is available on request.

info@webber-cross.co.uk LinkedIn