Tested SkyChartsPro and AeroCharts
SkyChartsPro, allows you to download NOS plates, has scans of low IFR charts, Sectionals, and Terminal area charts. BUT..... it didn't work..... the app seems to hang up and display the position in the wrong location, erroneous data, etc.
AeroCharts, does NOT allow you to download the NOS plates into memory but DOES download a map built for the device. While this map does not have all the data a sectional contains, it is significantly easier to read. Another important item is the verbiage is always right side up, where with a scanned chart it is only up if you are flying in a northerly direction (assuming you are flying track up). The GPS performance was 100% on with this app.
In both cases you must initialize the app BEFORE moving out of range of cell or wifi. After that the GPS will function with no cell or wifi. It seems the GPS will not initialize without a cell or wifi position. It also appears you DO NOT have to purchase any 3G data to get the GPS initialized using 3G.
SkyChartsPro, allows you to download NOS plates, has scans of low IFR charts, Sectionals, and Terminal area charts. BUT..... it didn't work..... the app seems to hang up and display the position in the wrong location, erroneous data, etc.
AeroCharts, does NOT allow you to download the NOS plates into memory but DOES download a map built for the device. While this map does not have all the data a sectional contains, it is significantly easier to read. Another important item is the verbiage is always right side up, where with a scanned chart it is only up if you are flying in a northerly direction (assuming you are flying track up). The GPS performance was 100% on with this app.
In both cases you must initialize the app BEFORE moving out of range of cell or wifi. After that the GPS will function with no cell or wifi. It seems the GPS will not initialize without a cell or wifi position. It also appears you DO NOT have to purchase any 3G data to get the GPS initialized using 3G.