Stroke is a leading cause of disability and death worldwide, and 8 out of 10 strokes can be prevented. Stroke Riskometer is a free app designed to help individuals and health professionals assess the risk of stroke. The app calculates the user's individual stroke-related risk based on factors such as age, gender, ethnicity, lifestyle, and other health factors. The user can join an international stroke research study to submit their data and help develop global prevention strategies. The app has been endorsed by major stroke organizations and offers new features such as goal setting, medication reminders, improved graphs, and management advice based on the user's risk factors profile. The assessment takes only 2-3 minutes and is suitable for people aged 20 to 90+.