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.
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.




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.
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