Measures your reach, ranking, engagement and displays it by location
Garbage stats. They don't analyze large groups, just people who have already signed up for the application. The graphs are misleading as time is skewed depending on when you last 'logged in/checked your rank'. Go elsewhere for better information.
Garbage. Doesn't explain anything. Half the links are down. They want you to register an account but they don't tell you what you get for registering. don't waste your time.
You can see these same stats on other tools and those tools actually work and explain the stats and help you do more with the information.