San Francisco: Apple’s upcoming iPhone 11 is tipped to be available for pre-order on September 13 and in-store availability is set to start on September 20. The information regarding the iPhone 11 release date was received from an inside source who works at a major carrier, Mac Rumors reported on Friday. The Cupertino-based company has already sent out invitations for its annual iPhone event on September 10. The event will take place at the company’s Apple Park headquarters in Cupertino, California