Yes, once you subscribe, you can use all features as well as a variety of additional features.
When you are on a monthly plan, using additional features will generate additional fees (equal to the amount used) in addition to the subscription fee.
* API/Webhook feature is not available in the Personal plan.
When you are on a prepaid plan, you need to buy credits in order to use additional features.
Price for each additional option
- SMS: $0.1 USD / When sending a text message notification to a mobile number.
- Timestamp: $0.5 USD / Used to prevent document forgery. Proves that the document has not changed since a certain point in time.