In Aesthetic Record, you have the option to see your clients as "patients" or "clients".  You can choose what you want the tab to say at the top of your screen by logging into your account at https://app.aestheticrecord.com/login.

Click on Settings Gear Icon > Account Setup > Business Information.

Where it says "What will you call your clients?", select Client or Patient and then Save.  Next time you log in, the proper tab will be reflected.