business model, there is only one FREE version of the plugin. To enhance and integrate more features to the FREE version, there are paid add-ons (modules) that can be purchased based on the user’s requirement. Does not need to provide all the features altogether. User only pays for features required. • Examples: ◦ Free version: Woocommerce. ◦ Paid add-ons (One time fee and yearly updates): Woocommerce subscriptions, Woocommerce Bookings, Woocommerce Product Search, Ship station, Paypal, Square, Mailchimp etc.