You can view the data of another FitAnalytica account by logging out of your existing account first. Simply go to the Settings icon, select "Log Out," and then tap on the "Log In" or "Sign In" button to choose the desired account. FitAnalytica will quickly log you in to the selected account, allowing you to view its details. This process only takes a few seconds, ensuring a seamless experience for accessing multiple FitAnalytica accounts.