Whether it is necessary to pay for downloading software by mobile phone depends on whether the software is charged.

Most apps in the Apple App Store are free, or only some features are charged. Apple will share 30% of all paid applications, and developers will get the remaining 70%.

If you find a game. Arcade logo, you need to subscribe to Apple Arcade, tap or click the price or "get" button. If you see the "Open" button instead of the price or "Get" button, it means that you have purchased or downloaded this application.