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Case Study · Field Services / Utilities

FieldKit — Offline-First Field App

A cross-platform mobile app that let field crews capture inspections offline and sync cleanly when they got back to signal.

Greenline Utilities · 2024

100%

Offline capable

-90%

Re-entry time

0

Paper forms

The challenge

Greenline's crews worked in areas with no reliable connectivity, but their inspection tool assumed it was always online — so data was re-entered later from paper, with errors and delays.

Our approach

  1. 1Built an offline-first app with a local store and a conflict-aware sync layer.
  2. 2Designed inspection forms for one-handed use in the field, with photo capture and GPS tagging.
  3. 3Added a sync queue with clear status so crews always knew what had uploaded.

The result

  • Inspections are captured once, in the field, and sync automatically when back in range.
  • Paper re-entry was eliminated, removing a whole class of transcription errors.
  • Office staff see completed inspections within minutes of a crew reconnecting.

Services

  • Mobile App Development
  • API & Backend Engineering

Stack

  • Flutter
  • Dart
  • SQLite
  • REST API
← All work

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