With the link above you can create your Notion account and get a 10$ credit as a gift. So if you want to get an unlimited personal license, you can get two months for free.
But stay reassured: there is a free option of Notion that is good enough to create a few service blueprints 😉
You can use Notion in your web browser, or you can get an app for your smartphone, Mac or Windows PC. As you prefer.
Okay, enough blah blah, now create your account