There is no charge for using Lisitngbook- SmartMLS members get the Pro version of Listingbook for free (included in your SmartMLS membership), whereas it would normally be $24.95 per month. We are currently the only MLS that does this; other MLSs only offer the basic version at no charge.
The only time you would have to pay anything to Listingbook is if you choose to run an optional Property Promotion (Featured Listing or Open House): these are $24.95 per listing per event.
Agents sometimes confuse Listingbook and Elevate- both are products from Elm Street Technologies, but they are completely separate.
SmartMLS is not involved with Elevate in any way.
There is a charge for Elevate.