Apple CEO Tim Cook said the company has more innovations up its sleeve, hinting that the Cupertino-based vendor could launch different versions of the iPhone and stating that it will increasingly open up iOS to third-party technology.

In a wide-ranging interview at an All Things Digital conference, Cook said: “I think we have several more game-changers in us. We have some incredible plans that we’ve been working on for a while.”

Although the company has previously focused on getting a single iPhone model right, Cook said it could take the same route as it did with the iPod by developing different versions to meet various customer needs: “The question is, are we now at a point to serve enough people that we need to [provide more iPhone models]?”

Cook added that Apple is likely to open up its iOS APIs to allow third parties to develop new functionality for its mobile devices, meaning technology seen on Android devices, such as Swype, could be added.

“Will we open up more? Yes. I think you’ll see us open up more in the future, but not to the degree that we put the customer at risk of having a bad experience,” Cook said, noting that there is “always a fine line to walk” when opening up to third parties.

Apple is planning to unveil the next version of iOS at its developer conference in a couple of weeks, Cook added.

Turning to Android’s dominance over iOS, Cook said that Apple has never been about selling the most devices, but about providing the best user experience. “People are using our products more and that’s what we’re all about,” he said, citing that 59 per cent of global web traffic on smartphones and tablets comes from iOS devices.

Cook also discussed the potential of wearable computing, and more specifically, Google Glass: “I think the likelihood that it has a broad range appeal, that’s tough to see. But I think wearables are incredibly interesting and I think it could be a profound area for technology.”

“There’re lots of things to solve in this space but it’s an area where it’s ripe for exploration,” he added.

Finally, Cook discussed the patent war that has developed between Apple and other major smartphone vendors in recent years, saying that the issue has been run “largely to the ground”.