The date is said to have been revealed in the May of issue of the Japanese MacFan magazine.
The Special event of next iPhone was performed on June 20, and the Japanese periodical MacFan has published the rumor that iPhone 5S will be put on the market in July and low-priced edition iPhone will be put on the market in August.
In the special event, it is predicted rather than the hardware that an illustration of iOS which adopted a new design may take the lead.
It's believed the iPhone 5S is already in production and could feature fingerprint detection technology. It would like ship with iOS 7 which is reportedly towards a flat design style.
Read More [via Kam]