The latest version of OxBump and CamBump was released today. This version primarily contains fixes for the release of Apple’s iOS 7 for iPhone, iPad, and iPod Touch.
Unfortunately, the erg recorder in its current form is incompatible with iOS 7, and the button to access it will not appear on upgraded devices. We intend to rectify this in a future release. (When that happens, all of your previously recorded erg scores will still appear.)