How comfortable it is to track key performance indicators for marketers, what I like the most is that it doesn't bug you down with all metrics but with 21 specific parameters that lead to growing a business. The app is the equivalent to an objective friend. A straight shooter that looks at the metrics that truly matter for my business. This ConversionFly helps the user look at marketing from end to end helping make decisions to increase customer lifetime value and reduce customer acquisition cost. This app is perfect for small marketing agencies that don't have the budget to buy some of the expensive analytic tools.