Over 55,000 airports/heliports/military airfields and even private landing strips airports worldwide are included in their database.
Once you’ve selected the heliport you want to go to, it will even tell you the estimate flight time. It can also tell you the driving time required to reach a specific destination, so you can pick the right heliport.
If available, the longitude, latitude, runway length, surface type and field elevation will also be displayed.
You can purchase it on the iTunes store here. Cost: $4.99