I'm going to make a plug here for the free 'FltPlan Go' app. I've used it for several months (on iOS) and it's handy to see if you're in the clear or maybe somewhere inside of class C or D airspace. It's for iOS, Android and Windows.
flttrack.fltplan.com
I fly part 121 for an airline and I also own a Mini and an Air-2. We landed in Ft Myers today and a SWA 737 landing behind us, was checking in with the tower, reports not ONE, but TWO drones SE of the final approach course. Tower then proceeded to take down whatever info he could give. He estimated their altitude as 500', but of course we know it *could* have been 400' since it's an estimate. Was he outside the 5 mile radius of the class C, or just a bit inside? Nobody can be sure. If he spotted them, I'd say they were probably pretty close. After shutting down at the gate, I checked my DJI app and yes, there's the usual prohibited zone around the airport, with ceiling limitations depicted in grey along the approach corridor to runway 23. I'm not sure what dimensions DJI uses for those. It sounds to me, and the way it appears on the DJI Fly app, as if one could possibly be flying in an area where the app allows unrestricted flight, but still be within Class C around KRSW. Their airspace starts at the surface and contains everything out a 5 mile radius. DJI themselves will tell you, do not use them and their app to determine your legality!
So here's the deal. If we used an app like this FltPlan Go, assuming you're in the USA, one could see a nice little dot on a Sectional Chart to make a very good assessment as to how clear one is from that controlled airspace. Obviously, your drone's position is something you're going to have to ascertain for your self. And if done with proper care, we would avoid some of these cringe-worthy moments of hearing about drones making incursions into controlled airspace. This is approximately my second time in a month hearing of this and something like the 3rd time in 6 months. So, at least to me, it sounds like an increasing problem.
Also,.....if you have a mobile connection, these websites might help too: (although most on this forum are probably savy enough to know about them already.)
faa.maps.arcgis.com
Spread the word when you can on this since the offenders probably aren't on a forum like this.
Cheers,
Tom
FltPlan Go Info

I fly part 121 for an airline and I also own a Mini and an Air-2. We landed in Ft Myers today and a SWA 737 landing behind us, was checking in with the tower, reports not ONE, but TWO drones SE of the final approach course. Tower then proceeded to take down whatever info he could give. He estimated their altitude as 500', but of course we know it *could* have been 400' since it's an estimate. Was he outside the 5 mile radius of the class C, or just a bit inside? Nobody can be sure. If he spotted them, I'd say they were probably pretty close. After shutting down at the gate, I checked my DJI app and yes, there's the usual prohibited zone around the airport, with ceiling limitations depicted in grey along the approach corridor to runway 23. I'm not sure what dimensions DJI uses for those. It sounds to me, and the way it appears on the DJI Fly app, as if one could possibly be flying in an area where the app allows unrestricted flight, but still be within Class C around KRSW. Their airspace starts at the surface and contains everything out a 5 mile radius. DJI themselves will tell you, do not use them and their app to determine your legality!
So here's the deal. If we used an app like this FltPlan Go, assuming you're in the USA, one could see a nice little dot on a Sectional Chart to make a very good assessment as to how clear one is from that controlled airspace. Obviously, your drone's position is something you're going to have to ascertain for your self. And if done with proper care, we would avoid some of these cringe-worthy moments of hearing about drones making incursions into controlled airspace. This is approximately my second time in a month hearing of this and something like the 3rd time in 6 months. So, at least to me, it sounds like an increasing problem.
Also,.....if you have a mobile connection, these websites might help too: (although most on this forum are probably savy enough to know about them already.)
ArcGIS Web Application
SkyVector: Flight Planning / Aeronautical Charts
Make your Flight Plan at SkyVector.com. SkyVector is a free online flight planner. Flight planning is easy on our large collection of Aeronautical Charts, including Sectional Charts, Approach Plates, IFR Enroute Charts, and Helicopter route charts. Weather data is always current, as are Jet Fuel...
skyvector.com
Spread the word when you can on this since the offenders probably aren't on a forum like this.
Cheers,
Tom