What's a good iPhone app for figuring out where the heck I can actually park without getting a ticket? Need something that works in the city.

Alright, so I was looking for an app that could tell me where I could park my truck without getting a ticket, especially downtown where the rules are more complicated than a damn blueprint. I tried SpotAngels Parking & Gas, and honestly, it ain't bad. The tutorial is useless, but once you figure it out, it shows you all the parking restrictions on the map. Rain doesn't stop it from working, and I can even use it with my gloves on. Battery life seems decent enough so far, haven't had it die on me mid-search yet. It's not perfect, but it gets the job done, and that's what matters. It's pretty accurate with the dates and times it is OK to park on which streets. Seems built like a brick house.