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Construction

Mobile App for Connected Construction Tools

CodeBranch built a mobile app that connects to professional construction tools via Bluetooth — contractors organize projects by rooms, capture measurements automatically (distance, area, volume, humidity), add field notes per space, and generate PDF reports on-site.

Quick Summary

  • Built for a construction tools company (50–200 employees) in Los Angeles, CA, United States.
  • CodeBranch built a React Native mobile app for a U.S. construction tool manufacturer that connects to professional measurement tools via Bluetooth — contractors organize projects by rooms, capture measurements by type (distance, area, volume, humidity), assign them to spaces, and generate PDF reports from the field.
  • Contractors organize projects by rooms and spaces, assigning measurements, photos, and notes to each one directly from the job site.
  • Bluetooth connectivity with multiple smart tools eliminates manual data entry — distance, area, volume, and humidity readings are captured automatically.
Tech Stack: React Native Bluetooth GPS NFC
Mobile app for connected construction tools — Bluetooth measurement capture and project management

Overview

Small-to-mid-size contractors run projects with multiple rooms and spaces, and need to capture different types of measurements at each one — distance, area, volume, humidity. Without a connected system, that data lives on paper, in spreadsheets, or in someone's memory.

CodeBranch built a mobile app for a U.S. construction tool manufacturer that connects to their smart measurement tools via Bluetooth and turns raw readings into organized, project-ready data. Contractors create a project, define its spaces (bedroom 1, kitchen, bathroom), and as they move through the site, measurements from connected tools are captured automatically and assigned to the corresponding room. Each space also holds photos, videos, and field notes — replacing the paper notepad.

When the site visit is done, the app generates a structured PDF report with everything organized by space — measurements, annotations, media — ready to share from the job site.

Industries

Services Provided

Approach

The app was built with React Native, delivering a single codebase for both iOS and Android — critical for an app that needs to work on whatever device a contractor carries to the job site.

Bluetooth integration was the technical core: the app pairs with multiple smart measurement tools and handles the protocol-level communication to extract readings by type — distance, area, volume, humidity. Each reading is tagged with its measurement type and associated with the space the contractor is currently working in.

The data model organizes everything around projects and spaces. A project contains rooms, each room contains measurements (typed and timestamped), annotations (free-text notes), and media (photos, videos captured via the device camera and microphone). GPS provides location context at the project level, and NFC enables tool and asset identification.

The PDF generation module assembles the final report from the project data: measurements listed by space, annotations inline, media referenced — formatted for client delivery or internal documentation.

2x Developer
1x Solutions Architect
1x Project Manager

Results

  • Contractors organize projects by rooms and spaces, assigning measurements, photos, and notes to each one directly from the job site.
  • Bluetooth connectivity with multiple smart tools eliminates manual data entry — distance, area, volume, and humidity readings are captured automatically.
  • Field annotations per space replace paper notepads, keeping observations and work notes alongside the measurement data.
  • PDF reports with measurements organized by space are generated on-site and shared instantly via email or messaging.
  • Cross-platform app launched on both the App Store and Google Play, working on whatever phone the contractor carries.
  • Full device hardware integration — Bluetooth, GPS, NFC, camera, microphone, and media library.

Frequently Asked Questions

How does the app connect to construction measurement tools?
The app CodeBranch built uses Bluetooth protocol integration to pair with the client's smart measurement tools. Once connected, readings are extracted automatically — distance, area, volume, humidity — and captured directly into the app without manual data entry.
How do contractors organize measurements by room or space?
Contractors create a project in the app and define its spaces — bedroom 1, bedroom 2, kitchen, bathroom, garage. As they take measurements with connected tools, each reading is assigned to the corresponding space. Photos, videos, and field notes are also attached per space, so every data point has context.
What types of measurements does the app support?
The app CodeBranch developed supports multiple measurement types depending on the connected tool: distance, area, volume, and humidity. Each measurement is tagged by type and associated with a specific space within the project.
How are field reports generated?
The app generates structured PDF reports with all measurements, annotations, and media organized by space. Reports can be shared via email or messaging directly from the device — no need to return to the office to compile project documentation.
Is React Native a good fit for a construction field app with Bluetooth?
Yes. React Native gives CodeBranch access to native device hardware — Bluetooth, GPS, NFC, camera, microphone — while maintaining a single codebase for iOS and Android. For construction apps where the user base spans both platforms and field reliability is critical, it is an efficient and proven choice.
Can CodeBranch build similar connected-tool apps for other industries?
Yes. The pattern applies to any industry where field workers use measurement instruments and need to capture, organize, and report data by location or space — HVAC, electrical, plumbing, environmental monitoring, or industrial inspection. CodeBranch has experience with Bluetooth device integration, mobile field tools, and PDF reporting.

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