Terrain ALWAYS comes from Dynon. We have the highest resolution data of any EFIS in the world for all areas of the world. Increasing this is basically impossible as you are talking about gigabytes of data as it is.
If you mean Basemap data (roads, rivers, cities), then that data never comes from your aviation data provider. Dynon is working on that, but we need to find sources of that around the world. No users in the world currently get roads/rivers/cities, not in the USA from Dynon, not from Jepppesen, nor from PocketFMS.
Obstacles come from the same place your get airports/airspaces. Dynon, Jeppesen, or PocketFMS, depending on who you are buying from.
The VRP's have two names, a IDENT which can only be 8 characters, and a longer full name. We only show the short name on the map so it doesn't clutter too much. Press NRST and select VRP's and you'll likely find easier to understand names since we have the full names in there. You can also search by full name.
Any database errors (like the dual EGST) should be reported to PocketFMS immediately. We'll contact them too, but they are the ones that create and sell the database so we can't make changes to it ourselves. If you have suggestions for better VRP names, you should also suggest this to them.