It's true that I sometimes complain about how expensive some iPhone apps can be. Although paying $15 for a language learning app doesn't seem unreasonable, there are tons of other translation apps out there that are much more wallet-friendly that catch my eye.

Recently, CNN wondered about the potential of the App Store to become the "Crap Store," with its high number of featured free and 99-cent apps (that may be lacking in quality), while more expensive and useful apps get less promotional love because of their price tag. I'm totally willing to pay a higher price for a good app, but I'll admit that I tend to search the free apps before anything else.

Tell me — what is the most you've paid for an app?