To simplify the calculation and implementation of Usage charges, we have decided to charge a Flat rate per Active Subscriber per Month.
Also, there is a provision of limited no. of Free Subscriptions per Campaign so that Campaign Owners can first test their Campaigns within their close group without paying any charges.
Only Subscribers who have Installed the Desktop Alerts and are Actively using it will be included for the purpose of calculating usage charges. If any subscriber is deleted before end of billing month, only no of days for which it was active will be counted for calculating usage charges.
Existing Campaign Owners can retain their Current Subscription model based on no. of Messages per month if they want.
You can view charges at this link.