Data caps. The mere mention of the phrase is enough to send shivers up the spine of any smartphone user. While there is a glimmer of hope that carriers might someday be forced to raise caps or even eliminate them entirely, data caps likely aren’t going anywhere anytime soon for Verizon Wireless and AT&T subscribers. Luckily, however, there are tools to help subscribers better manage their data usage. Carriers themselves offer tools that help users analyze data usage and they also notify customers as they approach their data caps, but a new free tool made available by the CTIA takes things a step further by helping smartphone and tablet users learn which iPhone, iPad and Android apps consume a large amount of data and which apps are more cap-friendly. The “Know My App” site allows users to browse through a list of popular apps or search by name, and it also shows how concerned people should be based on how high their data caps are. A link to the site follows below in our source section.