C.M. Post If you have a Business account, then you probably already have a Personal account. If you're currently using the free Easy Travel plan on your Personal account, you can always upgrade it to Easy Money or Easy Green in order to gain full banking functionality. It's definitely supported (and encouraged) to have both Personal and Business account(s) at bunq at the same time. The app even supports showing them in the same overview without having to logout and login again.
If you're unsure what plan you're currently on or if you already have a Personal account, take a look at the Profile tab > Settings (top right) > My plan. Or you can contact Private Support by going to the [Profile] tab > [Menu] 🌈 > [Get Private Support]. They're able to look at your account and give you more specific answers.