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Hey Jeff, Rajiv here, one of the founders of Leftronic. Here's how we're different: * We have a custom push API enables you to update your dashboard in real-time. (And our pull API is going to come out in the next day or two.) * Our interface is completely vector-based, which makes it work on any browser or screen size. And it's very flexible and configurable, so you can set up your dashboards exactly the way you wan…
I'm pretty sure Geckoboard does push now too. That said Leftronic is clearly better, but also more expensive.
You could also checkout the more recent one at https://my.infocaptor.com
Better visualizations, direct database access, sound alerts and better price (free)