A Mobile Recovery Guidance App for Children and Young Adults With Acute Ankle Inversion Injuries

Inclusion Criteria: * Age 12-30 years * Presenting to the Paediatric Emergency Department of the Children's Hospital or Adult Emergency Department, London Health Sciences Centre, London, or ntario, St. Joseph Urgent Care Centre, London, Ontario, with a unilateral acute (\<= 48 hours) ankle injury based on clinical diagnosis by ED physician * Able to use a WiFi enabled smartphone with either an iOS or Android operating system with enough memory capability to host the App. Exclusion Criteria: * Unable to read or understand English above at least a grade 8 literacy level in the absence of a native language interpreter * Not independently ambulatory prior to injury (without the use of an assistive device) * Developmental disability precluding the full comprehension of study-related procedures * Multi-system or multi-limb injuries * Concomitant radiographically proven lower extremity fracture or dislocation (with the exception of a suspected Salter-Harris type I injury)