Case Study

Tower inspections, digitised in the field

Rotower is a mobile inspection platform for telecom and energy tower engineers — replacing paper-based checklists with a structured, offline-capable digital workflow that generates reports automatically.

Platform:iOS & Android
Industry:Telecom / Field Services

Project overview

The challenge

Tower inspections in remote locations meant paper forms, manual data transfer, and reports that were days behind reality. Errors in the field led to costly re-visits, and there was no central visibility into inspection status.

Our solution

We built a Flutter mobile app with offline-first architecture — engineers complete structured checklists, attach photos and flag defects on-site. A NestJS backend on Google Cloud processes and stores all inspection data, generating structured reports automatically.

The impact

Inspection data now reaches the back office in real time instead of days later. Report generation that previously took hours is instant. Field teams spend more time inspecting and less time filling out paperwork.

Key features

From checklist to report, automatically

Tower inspection

Field engineers log inspection data, photos and defects directly from the job site.

Offline-first

Full functionality without internet — data syncs automatically when connectivity returns.

Inspection reports

Structured reports are generated automatically from collected field data.

iOS & Android

Flutter delivers one shared codebase across both platforms with native performance.

Design & UX

Designed for the field

Engineers use Rotower in all conditions — at height, with gloves, in direct sunlight. The interface was designed for these realities: large tap targets, high-contrast visuals, and a linear inspection flow that guides users step by step without ambiguity.

Photo capture is integrated inline so engineers don't need to switch between apps. Defect tagging is colour-coded by severity, making prioritisation instant.

Rotower – field engineer UI design for offline inspection workflows
Rotower – structured inspection form and data capture design
Rotower – wind turbine inspection management platform overview
Rotower – automated inspection report generation and export view

Technology

The tech stack

Flutter handles the offline-first mobile experience across iOS and Android. NestJS powers the backend API, managing inspection data, report generation and user management. Everything runs on Google Cloud for reliability and scale.

FlutterFlutter
NestJSNestJS
Google CloudGoogle Cloud
FigmaFigma

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