If you want to use Claude on both your phone and computer at the same time, or switch back and forth between a work account and a personal account, the most important thing is to clearly sort out the relationship between your login method and the email address tied to it. This Claude user guide will walk through the steps in the order of “login entry point — confirm email — switch accounts — secure sign-out,” and will also add the small details that people commonly trip over, so if you follow it, you’ll basically avoid mixing up accounts.
Enter Claude and confirm the currently logged-in account
After opening the Claude official website in your browser and logging in, first click the avatar in the top-right corner to go to the settings page, and confirm whether the account information and email displayed on the page are correct. Many people think they’re using Email A, but in fact they logged into a different Claude account via one-click Google/Apple sign-in, causing chat histories to be inconsistent. It’s recommended to stick with one commonly used Claude login method; switching later will be much easier.
Claude email verification and choosing a login method
Common Claude login methods include logging in with an email verification code and one-click third-party sign-in (such as Google or Apple). If you log in with email, when receiving the verification code, first check the spam folder, email delays, and any corporate email blocking rules, then try resending. To avoid “can’t receive the code but need Claude urgently,” you can stay logged in on your primary device and then log in on a second device afterward.
