No internet access with ADS-B unit attached. Big drawback!
You cannot see other Foreflight traffic like OzRunways or Avplan. They do not have such a feature but use FlightAware instead. But you cannot access FlightAware data either who they have partnered with as you have no mobile data! So if you are flying and connected to Sentry Plus, this disables mobile data so FlightAware traffic cannot work! They could fix this internet issue but have chosen not to. If they updated the firmware so the IOS device sees it as "no internet connection", it will then cause your device to use mobile data instead. Other ADS-B brands not associated with ForeFlight do this and hence others apps do not have this problem. So you can see more traffic with OzRunways and AvPlan then ForeFlight as a result. Support could be be a lot better with some of their staff as when I spoke of the problem of not having internet access and not being able to do a PACK for one example, they told me I had to do my flight with mobile data off, but do the Pack in the runup bay with mobile data on and then turn mobile data off for the flight. However, having mobile data off causes Foreflight to give an error on load saying no mobile data access. It took several emails to get them to respond to this which resulted in them now telling me the opposite and to use ForeFlight with mobile data on even though it does not work. If you asked 2 or more questions to support, they only answered one question and ignored the rest. When the head of support noted I had said this in one email, she personally responded and did an excellent job in responding and answering all questions I asked. She was excellent. So if you plan on using ADS-B and want mobile data available when possible during flight, then OzRunways or AvPlan are your only choices unless they fix this. I sure hope they do as their app has a lot of potential and powerful features, and though more expensive to use, I would still use it if they fixed this. I saw on their web site with the Sentry that they had done this previously. I hope they do it again, or better still, add their own server like OzRunways and AvPlan so we can see more traffic, as safety should be a high priority. There traffic warning system is first class but falls down in regards to seeing less traffic than other flight apps.