Use with IPad – Aqua Map USA: Marine & Lake Review

I bought this app for my iPad thinking I could use it as a substitute for a chart plotter. The maps are brilliant, lots of reference and way pointing set up is a snap. However it doesn't track when I use my non phone iPad and portable hot spot. (Wi-fi only) Evidently you need the built in phone for tracking?It's does work on my 6 plus but that's a challenge for old eyes. If anyone knows related information please post as this product would be great to use.
Review by RivahBoy on Aqua Map USA: Marine & Lake.