An "Apps Rank Tracking Tool" is a software tool used to monitor and track the rankings of mobile applications (apps) in various app stores, such as Apple's App Store or Google Play. These tools typically provide information about an app's position in the search results for specific keywords, as well as its overall ranking within its category or subcategory.

Using an Apps Rank Tracking Tool can help app developers and marketers to understand how their apps are performing in the app stores, and to identify areas where improvements can be made to boost their visibility and downloads. Some tools also provide features like competitor analysis and keyword research, which can be helpful in optimizing an app's marketing strategy.

Overall, an Apps Rank Tracking Tool can be a valuable asset for anyone involved in the development or promotion of mobile apps, as it provides valuable insights into the performance of an app in the highly competitive app market.