How much does it cost to join Bubble?

Could you please enlighten me on the matter of Bubble membership fees? I'm keen to know, exactly how much does it cost to become a member of Bubble? I understand that various factors could influence the pricing, such as membership tiers or additional services, but I'm primarily interested in a ballpark figure. Is there a standard fee that applies to most users, or does it vary significantly depending on individual circumstances? Your insights would be greatly appreciated as I'm considering joining this platform and want to budget accordingly. Thank you for your time and assistance.