Reducing unintentional injuries in under fives: Development and testing of a mobile phone app.

The GUS mobile phone app, aimed at reducing unintentional injuries in children under five, was supported by mothers as a health promotion app. They would consider downloading it, particularly if recommended by a health professional or endorsed by a reputable organization. Further development is planned with push-out notifications and wider feasibility testing to engage targeted groups, such as young mothers, fathers, and other carers.