Estimates place it higher than that [0]: "Broken down further, "Fortnite" is said to have made $1.6 million each day on Apple's devices; if Apple is pulling in its standard cut of 30%, Apple made somewhere in the realm of $136.5 million on "Fortnite" in 2018.".

[0]: https://www.businessinsider.com/how-much-does-fortnite-make-...