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Google is once again making changes to its business structure. It has announced that more categories of apps will be eligible to pay significantly less than the usual 30 percent fee. The company is announcing that all subscription-based apps will now pay a fee of 15 percent. It’s also says that “ebooks and on-demand music streaming services” will be “eligible” for a fee “as low as 10%.”

Google’s previous structure was similar to Apple’s: 30 percent the first year, 15 percent thereafter. The new change simplifies that by offering 15 percent right off the bat and is likely a strong incentive for developers to switch over from one-time payments to subscriptions.