I have a lot of apps on my phone. Many of these are there because I want them to be; some are there because I test them out for work; and others are a total mystery. What's worse, some of those—and ...

Recurring charges can easily add up. CNBC picks the best apps to help you track and manage your paid subscriptions and memberships.

Many smartphone users rely on digital subscriptions as a source for entertainment, physical fitness and connecting with others. You can sign up for most streaming services, exercise clubs or dating ...