Best Distribution Method

We have a companion app to our Web App that we are about to distribute. My question is this:

Our customers sign up and pay for an annual subscription for our services (travel planning service) via our website. They can then access and use the services via our site, but we are also planning to add a free companion app that ties into CarPlay (although approved) as well as full functionality of our web app.

From what I've read in the Distribution Manual, it seems as though I can release this as a free app and still take payment via our primary web app according to section:

3.1.3(f) Free Stand-alone Apps: Free apps acting as a stand-alone companion to a paid web based tool (e.g. VoIP, Cloud Storage, Email Services, Web Hosting) do not need to use in-app purchase, provided there is no purchasing inside the app, or calls to action for purchase outside of the app.

My question is, am I reading this correctly?

Best Distribution Method
 
 
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