The version number explanation
IOS in Info.plist the definition
CFBundleShortVersionString: explain in Xcode is Version , this is what we often say that the version number, usually visible to the user, usually consists <主版本号>.<次版本号>.<维护号> of three parts, the main products used to identify different functions at different times.
CFBundleVersion: explained in Xcode it is Build , is typically used in internal procedures and identify the version of the market, as the basis for determination of the update, usually is an incremental type INT.
Android in AndroidManifest.xml the definition
android: versionName: corresponds to the iOS CFBundleShortVersionString version number, as a product management.
android: versionCode: corresponding to the iOS CFBundleVersion build number, as an internal identification.