The phrase "subscriber fees" refers to the money that people pay on a regular basis to be a part of a service or subscription. It could be for things like a magazine, a streaming platform, or an online gaming service. Full definition
Whether the money they receive is in the form of subscriber fees or advertising — they have to be compensated eventually. (gigaom.com)
Most major media companies depend on monthly subscriber fees for cable channels, but the bundle is under increasing pressure from streaming competitors and behavioral changes. (money.cnn.com)
That means about $ 650 million less in subscriber fees, most of which is pure profit. (fortune.com)