Charles is a reasonably ok tool, but if you want the equivalent of Charles on steroids, we use Burp Suite Pro (http://www.portswigger.net/ http://www.portswigge

Charles is a reasonably ok tool, but if you want the equivalent of Charles on steroids, we use Burp Suite Pro (http://www.portswigger.net/ http://www.portswigger.net/) at Mandalorian. Burp suite pro costs about $200 and is worth every penny for both web app security testing and general web debugging. There's also a free version for personal use with a few things disabled, but still perfectly useful for debugging web apps.