In the OTP verification plugin, pricing plans are based on the gateway you wish to use for sending the OTP's. If you don't have your own gateway then you can also use the miniOrange SMS gateway.
To find the best plan for you, just follow these steps
Step 1: Search and
select your form.
Step 2
Step
2:
Select whether
you have an
SMS
gateway or not.
Step 2:
Do you have your own SMS GatewayAPI?
Step 4
Note:
If you don't have a gateway then you can use the default miniOrange
gateway.
Step 3:
Click on
suggest me best plan.
Step 4