The change will kick in July 1, Google said, and it'll apply to every developer regardless of size. The fee will jump to the standard 30% once developers make more than $1 million in sales for a year.
"With this change, 99% of developers globally that sell digital goods and services with Play will see a 50% reduction in fees," Sameer Samat, Google's vice president of product management, said in a blog post.
Watch this: Epic vs. Apple lawsuit heads to trial in 2021
developer Epic sued Google and Apple for removing Fortnite from their app stores. Epic added a direct payment service to its Fortnite app, which circumvented the app store owners' payment systems and commissions.
In a statement emailed to CNET, Epic acknowledged that the reduced fee "may alleviate a small part of the financial burden" but said the change doesn't address the cause of the problem.
"Whether it's 15% or 30%, for apps obtained through the Google Play Store, developers are forced to use Google's in-app payment services," an Epic spokesperson wrote. "Android needs to be fully open to competition, with a genuinely level playing field among platform companies, app creators, and service providers. Competition in payment processing and app distribution is the only path to a fair app marketplace."