Works fine. Looks like made for iPhone 4.
The UI is simple and uncluttered, does exactly what is necessary and nothing more.
What annoys me a little is that the buttons on the main map screen are placed as if made for an iPhone 4 screen. Thus the app feels a little strange on my Phone 5. (Cant check anything newer, sorry...)
Keksdosendeckel about
GeoCaches, v1.6.2