1Centre has 3 types of fees; Base subscription, Addon & Modules and Transactional fees.
Subscription
On 1Centre's Pro and Micro plans, the base subscription fee is charged on a per-month, per-user basis depending on your plan.
Addons & Modules
Addons and Modules are also charged on a monthly basis, depending on the specific features that are enabled. eg.. sales channels and PPSR module.
Transactional
Transactional fees are charged on a per-event basis, you will be charged for each time the event is completed. eg.. running a credit check.
Enterprise
1Centre Enterprise accounts can be tailored to fit your business.
For more info, check out our website https://www.1centre.com/pricing/