The pricing around rsNeatPublish and isNeatPublish is based on CALs as follows (all prices quoted are in USD).
(Note if you are looking for the support and upgrade only page see Support/Upgrade Only Pricing)
^ Introductory price
* 1 CAL = 1 device where rsNeatPublish and/or isNeatPublish is installed on
† Support & upgrade must be purchased in the first year
NOTE: if both rsNeatPublish and isNeatPublish are purchased, these can be packaged together with a discount depending on the number of CALs for each