How much is Sync per month?

Excuse me, could you possibly provide me with some clarification regarding the pricing structure of Sync on a monthly basis? I'm currently considering incorporating it into my financial portfolio, but I'm having difficulty determining the exact monthly cost. Is there a set fee, or does it vary based on usage or subscription level? Additionally, are there any promotional offers or discounts available that could potentially reduce the monthly cost? Your insights would be greatly appreciated.