The Costain eToolkit app is a powerful cloud-based, cross-platform and context-aware productivity tool for construction site personnel. Using the app, authorized users are able to capture and record information about daily events related to engineering projects such as daily allocations, milestones, delays and incidents. This information includes the ability to add titles, descriptions, resources and photographs to a simple timeline and highlight particular details for analysis and reporting in a secure cloud-based backend system. The app also includes a weather widget that automatically records the weather conditions against recorded events. Developed initially for the construction sector, the app is portable to any business that requires similar robust data capture.