y should ask themselves what's more invasive: people knowing that you use eBay and Facebook ... or people seeing what you have for breakfast every day on Instagram.
That said, App Mahal works like any other social app: you can follow other users, and at the same time, be followed. This feature gives you an idea of what apps you might like or dislike.
App Mahal is an pretty interesting tool for finding other applications. As with other social apps, it's much more useful if you know a lot of other people who use it.