Evidence suggests that using a standardised triage system that categorises patients into levels of severity or acuity to prioritise their care can provide the greatest levels of patient safety. The use of a web-based app to record patient triage data can support operational decision-making, reduce the risk of errors and standardise the time it takes to record the data required for accurate triage. This article details one aspect of a three-stage research project undertaken in Thailand which aimed to improve the quality of nurse triage, reduce errors in triage decisions and decrease the time spent on triage through implementation of a patient triage app. The patient information input into the app at initial triage is automatically uploaded into the electronic patient record. The authors report the results of the third stage of the project, which aimed to analyse the feasibility of using the app by evaluating completion of patient records and user satisfaction levels.