I got fed up with the bloated gym apps that were in the App Store, so I built one that only has the features I need: …and not the features I don’t need: It’s called Pump. You can get it here. It’s built using jQTouch and PhoneGap, which has disappointingly twitchy quasi-native behavior. I’m planning for the next version to be entirely native. Apple should open its iAd framework to be available for general app creation. Their JavaScript library, PastryKit, feels indistinguishable from a truly native app, but it’s completely undocumented and unsupported.