Is there an app for Android similar to Siri?

Google Now on Android functions similarly to Siri. Users can activate voice commands by saying the phrase "Okay Google." They can also post to social media accounts, search for information, play music, mark an event in the Calendar app, and make calls.

Google Now features more than 110 voice commands as of April 2015. Besides voice commands, the voice-enabled personal assistant also offers information based on a user's interests, including sports scores, concert information, traffic and weather. It also lets users create notes, reminders and alarms. Users can tailor the information displayed at any time by swiping away unhelpful information or by adjusting Google Now's settings.