Metric.live - Real-time and advanced periodic alerts for Google Analytics.
XTRA.GA - Google Analytics by Email - Awesome summary of your key #s
Google Analytics by SumoMe - The easiest way to see your Google Analytics
Analyzely - Rich marketing data analysis inside Google Analytics
Statsbot - Connect your database, let Statsbot generate data relationships from your database automatically, and get your first insights in a matter of minutes.
Google Analytics 360 Suite - Enterprise analytics for your marketing.