It is and it isn't. We offer a free limited plan which comes without premium features. That's the default option. If don't want to pay for a premium subscription, simply avoid any features marked with the blue-ish Premium label.
Besides the free plan, we offer three Premium plans:
Monthly which gives you unlimited access to all of our premium features for your own personal use.
Quarterly, which is billed every 3 months, includes a month of free Premium you can gift to one of your friends.
Yearly, which is billed every 12 months, includes a month of free Premium for up to 5 friends.
For pricing and more info click here.
Tip:
Premium features are marked with a Premium badge.