What's a decent iOS app for tracking how much I'm actually making driving folks around, so I don't get screwed?

Alright, so Lyft Driver is the app you need to use if you're driving for Lyft, plain and simple. No BS. It tracks your fares, mileage, and all that jazz for taxes. The interface ain't pretty, but it's functional, like a good ol' hammer. I wouldn't say it's 'built like a brick house,' more like a cinder block shed, but it does what it needs to. I've had it running in the rain, and it didn't quit on me, so that's a plus. Main gripe? Battery life. This thing eats through power like there's no tomorrow. Gotta keep a charger handy, especially on those long nights. The tutorial is useless, but once you figure it out, it's straightforward. It's actually rugged enough to handle the daily grind, even if you accidentally drop your phone between the seats a few times. Gets the job done, that's what matters.