Update: Since Epic Games made this change, Fortnite has been banned from both Google Play and the App Store. In response, Epic Games filed lawsuits against both Google and Apple, alleging they are monopolizing software sales. It also had a 1984 parody video ready to go, directly going after Apple for its policies.
Original story follows:
Fortnite developer Epic Games has announced a platform-wide slash on the price for V-Bucks, the in-game currency used in its battle royale. Players will now be able to buy them for less, with up to 20% off.