Because VoiceOver is integrated in iOS, it works with all the built-in iPhone apps. You can create custom labels for buttons in any app — including third-party apps. And Apple works with the iOS developer community to make even more apps compatible with VoiceOver.
BridgingApps has created a list of popular apps using VoiceOver. Many of these apps have been trialed with users of various abilities and reviewed by professionals. Click here or on the image below for the full review information and links to download.