iPhone 6 release date may be sooner than later as the beta versions of iOS 7 is almost over.

The new iOS 7 beta 4 is now available for download since July 29. It will not be that long before the beta 5 will be released.

The first beta version of iOS 7 was released on June 10th, then the beta 2 on June 24th, the iOS 7 beta 3 for developers was downloadable since July 8th and the fourth instalment arrived last Monday. Thus, the pattern from beta 1 to beta 3 was a 14-day period. The beta 3 to 4 has a massive gap of 21 days.

Thus, it is expected that the iOS 7 beta 5 will be released on August 12 if we follow the 14 days release gap. The delay between beta 3 and 4 was due to the developer server hack.

Therefore, we can expect the next iPhone 6 release date around September as it is reported that developers should expect two more beta versions.

According to tech giant Apple, the official version of iOS 7 will be released in the fall. Based on the 2013 calendar, fall season is between these dates. By vaguely confirming the release date of iOS 7, Apple also hinted the date of announcement of the next iPhone.

Last year, the iPhone 5 was released along with iOS 6. Moreover, the iOS 6 was officially released on September 19, which was exactly 100 days after its announcement.

If Apple will follow its formula from last year, the official version of iOS 7 may be released on September 18. The iOS 7 Beta 3 was released last week. iOS usually releases three to seven beta versions before the official version comes out. This is to ensure that the official iOS is free from bugs and problems.

Based on the past iOS releases, it is usually debuted with a hardware, which is the flagship smartphone of the company. However, it is still unconfirmed whether Apple will release the full-fledged iPhone 6 or the cheaper iPhone 5S.

Rumour has it that Apple's iPhone 6 will be powered by A7 quad core processor, which is claimed to be faster than the previous processor. The processor will be paired with iOS 7 operating system, which is packed with new and better features.

Apple may have planned to bump the storage capacity of its smartphones. iPhone 6 is said to be coming with 16GB, 32GB, 64GB, 128GB internal storage. The company may also add a new security feature to its devices with the inclusion of fingerprint sensor in the home button.

However, the concrete iPhone 6 release date is not confirmed yet by Apple.