1. Google Voice :
Google Voice is a telephone service that provides the call forwarding services and voicemail services. It allows users to have a single number and forward it to multiple phones. It was launched by Google in 2009. It is available for web, android and iOS systems. It enables to retain the phone number despite changing the phone device. It uses the contacts across the gmail of the user. It provides many services such as voicemail, free text messaging, call history, call screening, blocking of unwanted calls and voice transcription to text of voicemail messages.
2. Google Hangouts :
Google Hangouts is a communication application which is provided by Google. It allows users to send and receive messages, photos etc. It also offers free video calls between individuals or within a group. It was originally a feature of Google+ but Google integrated the features of Google+ Messenger and Google Talk into Hangouts. It was launched by Google in 2013. It enables users to connect with friends and family and start a conversation. This application can be accessed online through Gmail.
Difference between Google Voice and Google Hangouts :
|GOOGLE VOICE||GOOGLE HANGOUTS|
|It is a telephone service that provides call forwarding and voicemail services.||It is a communication application that is used to send and receive messages, photos etc.|
|It was launched in 2009.||It was launched in 2013.|
|It offers messaging and voice calls but does not offer video calls.||It offers messaging, voice calls and video calls.|
|It is original feature of Google.||It is original feature of Google+.|
|It is a standalone internet based telephony service which uses a single phone number across multiple devices.||It uses a Hangouts dialer application to make phone calls. It does not function alone as a telephony service.|
|It allows users the blocking of unwanted calls.||It does not provide such services.|
|Number used in Google Voice is the regular number used to make traditional phone calls.||It uses WiFi to make phone calls over a WiFi connection.|
|It gives full control of the call making through the phone devices.||It does not provide full control of call making.|
|It is not integration of two or more applications.||It is integration of Google+ Messenger and Google Talks.|
|It does not require to have gmail signing.||It requires gmail signing to connect with people.|