Now, Apple has agreed to let Facebook Pay process all paid online event purchases. This means Facebook can absorb the cost, and Apple won’t get a cut. But this agreement only lasts until December 31st.

“Apple has agreed to provide a brief, three-month respite after which struggling businesses will have to, yet again, pay Apple the full 30 percent App Store tax,” a Facebook spokesperson said. Facebook will not collect fees until August 2021.

The other big catch is that Facebook Gaming creators are left out of the deal. They’ll still have to hand over 30 percent of earnings that come through the iOS app.

“Apple’s decision to not collect its 30 percent tax on paid online events comes with a catch: gaming creators are excluded from using Facebook Pay in paid online events on iOS,” said Vivek Sharma, VP of Facebook Gaming. “We unfortunately had to make this concession to get the temporary reprieve for other businesses.”

These battles over App Store fees are becoming more common. Sometimes they go better than others. Epic is now embroiled in a nasty legal battle with Apple, but Basecamp found a way to skirt Apple’s rules to get its Hey email app approved. Just yesterday, Epic, Spotify and others announced The Coalition for App Fairness, an alliance formed to pressure Apple and Google to change their app store rules.