I'd like to develop an app using Connect IQ SDK, which will interact with the Android phone, but without the phone app will not work. How should I publish the app on Connect IQ Store in this case, just specify a link to Google Play in the description of the application or ...?
I believe that there is the option to link off to a companion app when you submit your application to the Garmin Connect App Store. If you do so, you'll get a link to the companion app right on the app download page. An example of this can be seen on the Disc Golf IQ page.