We may have created the app, but like many human technologies, cats have bent it to their will.
The app pictured above, Cat Fishing 2, is free on iTunes; Game for Cats, described as the first in "competitive video gaming for animals" in 2011, is free to download but costs $1.99 for the full version on iTunes.
7. Walk for a DogThe premise of WoofTrax's Walk for a Dog is simple: Walk a mile, and WoofTrax gives money to a local animal shelter. In its first six months, the app has donated a total of $10,000 to U.S. shelters, WoofTrax CEO Doug Hexter told the Huffington Post. The funds come from advertising and sponsorship, Hexter said, and earn shelters between 11 and 25 cents per mile.