Difference between Google Voice and JustCall

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. JustCall :
JustCall is a telephone application that provides voice calls between mobile phones or computers using phone numbers. Users can also send or receive messages using this services. It allows to connect several people at a time i.e. It provides the voice calls conferencing service. It was founded by Gaurav Sharma in 2016. It provides services like call forwarding. It also provides voicemail service through email. It is majorly used for making internet voice calls. By using this service voice calls can be made through web browsers also.

Difference between Google Voice and JustCall :

GOOGLE VOICE	JUSTCALL
It is a telephone service that provides call forwarding and voicemail services.	It is a telephone service that provides voice calls.
It is owned by Google LLC.	It is owned by JustCall.
It was launched in 2009.	It was launched in 2016.
It was developed by Google.	It was developed by Gaurav Sharma.
It offers messaging and voice calls but does not offer video calls.	It offers voice calls and messaging.
Voice calls can be made only by mobile phones.	Voice calls can be made by mobile phones and computers.
It has more number of users.	It has less number of users.
Number used in Google Voice is the regular number used to make traditional phone calls.	Phone number is necessary here also.
It does not provide conference calls.	It provides conference calls during voice calling.
Its services can not be used via web browsers.	Its services can be used via web browsers also.