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Google Now Launcher makes Google Now one swipe away. This app is virtually a personal assistant. It remembers where you park, suggests reading, suggests places to visit, and supports hands free voice commands. With voice commands, users can play music, send messages, or pull up maps.
SpecsUpdate
Pros
Pro Adds easy access to Google Now functionality
Google Now, an intelligents personal assistant, can be accessed directly from the homescreen. It's activated by saying "Ok, Google" and used simply by asking for information or giving it instructions using simple, natural language.
Google Now also gives context sensitive information in the form of cards that can be accessed by swiping to the left from the homescreen. These cards will offer directions to events planned, travel information, news based on interests, etc.
Pro Simple installation process on any Android device
Keeping in mind that older phones might offers flaky performance and it's best to have at least Android 4.1 running on the phone, Google Now can be installed without rooting the phone simply by downloading it off of the Google Play store and following instructions.