Zapier Plans & Pricing: https://zapier.com/app/billing/plans

Article: https://zapier.com/help/manage/tasks/learn-about-tasks-in-zapier

Zapier is billed based on Tasks used.

Tasks are successfully processed ACTION steps in a Zap.

A Zap has 1 Trigger and 1+ Action steps.

I see your plan,but  not understand your plan, could you mention me here? I ask you questions here, you also answer here my question thanks in advance. 

Hi @Itatiq !

Adding onto what @Troy Tessalone mentioned, a Task is counted every time a Zap successfully moves data or takes action for you. For example, if your Zap has an action to create new Google Contacts, each contact that is created will use one Task.

The number of Tasks you need depends on the number of active Zaps you have and how frequently those Zaps will run to automate your workflow. If you are unsure and happen to use up all your Tasks in a given month we’ll hold your Tasks until you upgrade or your monthly usage resets. If you use more than 2 million Tasks, you will be billed at a per-task rate of $0.0010.

So, the number of tasks you would need would depend on your specific workflow. If you scroll to the bottom of this page you will see some additional information that may be handy when choosing a plan!