I started with the 7 minute workout using this app: https://apps.apple.com/ca/app/j-j-official-7-minute-workout/.... Doing it once a day helped me with fitness and mobility. Less pain doing stuff around the house, lost fat, built muscle. And the app has a progression to more difficult levels as well and I have been moving up that scale. This year I intend mixing in some Apple Fitness strength training, but to be honest I won’t be bummed to just continue using the programs on the app. The gains of the daily routine have been amazing.