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

Automatic app subscriptions take the hassle away from remembering to visit a payment webpage at the end of each month for goods and services you know you'll want to continue using through the future.

I thought I had it under control. But when I finally sat down to audit my expenses, I found almost $100 a month. That adds up ...