On Tuesday, Google released an update for the highly popular standalone Google Search application for iOS, making version 4.0.0 the latest version you can download from the App Store.
The update focuses primarily on improvements to the Google Now voice search feature that is built into the application as a type of competition against Apple's Siri. The voice search will now let you follow up with answers by asking additional questions related to whatever you just asked:
Originally Posted by Google
Whether you're using Google Search because you like the functionality, or you just like Google, the application makes a nice alternative to Siri on devices that don't support the voice assistant.
Existing users of the Google Search application will find the update under the Updates tab in the App Store application. Alternatively, you can download the latest version of Google Search for free from this App Store link.
Sources: App Store