Netflix’s cheaper, ad-supported tier has reached 70 million global monthly active users two years after it was launched.

The world’s largest streaming service is celebrating two years of availability for its ads plan by bragging about its growing customer base. Netflix is having a party, and so far it reports that 70 million people have shown up.

nearly doubling from about six months earlier as customers seek more affordable options. The plan, priced at $6.99 per month in the U.S., now accounts for more than half of all new Netflix sign-ups in regions where it is available. It reached 40 million ...