Is Google Analytics free?

I want to know if Google Analytics is completely free or do they charge for any premium parts of the service? I am asking because I recently signed up for many analytics services. They provide some parts of their services as free and then force to purchase the premium plan by restricting access to certain features. Show all the features provided by Google Analytics is free or paid?

Google Analytics is a completely free service that you can use with complete features. I have been using the service for several years now and they never have been asked for any premium subscription for almost anything I wanted to use. It is probably one of the best services available out there as well when it comes to tracking your visitors and their using the data to improve the user experience. So I might say it is a completely free service and you can subscribe for it for free.