There are many analytics solutions available online. Each of these solutions uses its own methods to implement code and collect data. Different products have their own definition on what constitutes a page view, a visit, a unique visitor, and other metrics used in each respective product.
Because of these wildly differing definitions, data structure, and implementation, Adobe Customer Care does not troubleshoot discrepancies with third-party analytics tools.
If you see a large discrepancy between Adobe Analytics and a third-party analytics tool, the following resources are available: