, the developers behind The Wine Navigator app have told us that the change has caused negative consequences for them. "For us, the change is terrible. Search for "wine" and Wine Navigator appears at about number 140 (below iBeer?!) -- it was number 11 before."

Another developer suggests that Apple has improved the algorithm to be able to detect the content and topic of the app, rather than just names and keywords. This would fit in with Apple's acquisition of Chomp, which is an app search engine that "learns the functions and topics of apps, so you can search on what apps do, not just what they're called," says the company's website.

It is currently unknown whether all countries have received the changes, but TechCrunch suggests that the US, UK and Germany iTunes App Stores have been improved.