Centenary Day is described as 'An AI-powered health-optimization toolkit that builds personalised routines, intelligent meal plans and smart reminders in under 10 minutes—then syncs everything across web, mobile and your calendar' and is an website in the office & productivity category. There are more than 50 alternatives to Centenary Day, not only websites but also apps for a variety of platforms, including iPhone, Android, iPad and Apple Watch apps. The best Centenary Day alternative is OpenNutriTracker, which is both free and Open Source. Other great sites and apps similar to Centenary Day are OpenTracks, ASICS Runkeeper, Strava and MyFitnessPal.