The key difference can be summarized into the following table.
|Charge per Conversion
|Charge per Attempt
|You pay a flat fee on every successful verification.
|You pay for every request to sending verification code.
|Auto - MoceanAPI routing algorithm
|Manual - your preferred channel
Naturally, you would want to choose Charge Per Conversion model, if you like simple setup. MoceanAPI will try to reach your end-user with any available channel and auto retries until your user receives the verification code, the best part is we will not charge you a single cent your user is converted successfully.
However, if you like to have more control over verification flow. You would want to choose Charge Per Attempt model, you get to decide how you want the verification code to be delivered and when to retry on verification, and we will charge you accordingly to every attempt on sending verification codes.
For further assistance, do raise a support ticket with our Support Team at email@example.com.