Inclusion Criteria:  Has a unilateral LLA (transtibial or transfemoral) due to diabetes or vascular disease Has been admitted for prosthetic casting within the past 6 months. Be aged ≥ 50 years (85% of adults with LLA) Self-identifies as being able to speak and read English. Has access to computer or tablet and internet. Individuals living in British Columbia or Ontario, Canada.  Exclusion Criteria:  Substantial health conditions (e.g., congestive heart failure, diagnosed dementia) Those anticipating further surgery (e.g. LLA revision) as identified by our study sites' physiatrists an inability to use a tablet (e.g. using hands for typing).