Tape It - App for songwriting & audio recording.
Spott - API to work with cities, countries and political divisions.
Planet Explorer - Interactive global satellite images
IP Location - IPLocation.io provides a free lookup tool to check the location of your Public IP Address. It finds this data through various GEO IP databases and online services. Just enter an IP and check its location easily.
Hum - Songwriting for iPhone
Just Press Record - A simple, professional audio recorder