While Facetime is preinstalled directly on iOS, Android users have no way of using Facetime. But that's not a problem: there are enough alternative apps that allow you to conveniently make video calls. And best of all: some of these apps are also available for iPhones, so that you can make video calls with your friends across OS.
Skype
The best known program for online telephony and video telephony is probably Skype. With the app, you can also use it conveniently on your smartphone. Microsoft bought Skype in 2011 and has been using it as an alternative to MSN Windows Live Messenger ever since. This means that Skype is already preinstalled on Windows-based smartphones. Individual calls as well as group calls are free for registered users - even if you make a video call. The only requirement for this is that other users are called. Only calls to actual phone numbers still cost money. The Skype app is for Android, iOS and Windows-based smartphones available. There is also a desktop version.
Google Hangouts
Google Hangouts comes directly from Google itself and is preinstalled on most Android devices. You do not need to create a real user account for the app, because you use your Google account to log in . And you must already have this for optimal Android use. In addition to a regular messaging system, the app also brings voice and video calls with it. You can also use Hangouts as a desktop version on Windows computers and Macs, but the app on smartphones is currently only available for Android- based systems..
Whatsapp
The widespread messenger WhatsApp brings with it not only the writing of messages but also telephony - both voice telephony and video telephony . You can also send voice messages. A big advantage here is that WhatsApp has become an integral part of the smartphone for many people. So here you may have the highest chance of reaching all of your contacts through a single app. WhatsApp is available for all common smartphone operating systems and also has a desktop version.
Viber
This app is actually intended as a regular, free messenger . Voice calls as well as video calling work very well via Viber too. Viber is available for iOS devices such as the iPhone, as well as for Android devices. There is also a desktop version of this app. By the way, Viber is also a good alternative to WhatsApp. You can find more alternatives to WhatsApp here..