Want to link from Google’s app store to your app? That’ll be $2–4 per install

"While it isn’t collecting fees yet, Google says it will charge developers $2.85 for every app and $3.65 for every game a user installs within 24 hours of clicking a link that takes you outside Google’s app store to download them outside the Google ecosystem.

Plus, it’ll take a 20 percent cut of any in-app purchases and 10 percent of any auto-renewing subscriptions. Apps still need to be submitted to Google for review, use a Google API to track them, and developers have to report all transactions (including $0 free trials) if they want to participate."