Which license for

We build websites for our customers based on a monthly subscription. Our packages include hosting, domain, updates and support etc. We would like to offer userTrack to our customers for making heatmaps:

I have been reading about the extended license but did I understand it correctly that with an extended license we can include userTrack in all our customer websites (monthly subscriptions) without having to sell them a seperate license?

You would need a new license/copy for every customer - items can’t be included in on demand etc. Point 9 https://themeforest.net/licenses/terms/regular