Skype
Skype is a free voice/video call app which is available across all platforms. Skype is one of the most popular video calling app with over 250 million users. You can even call to mobiles and land lines who are not on Skype at low cost to stay in touch. Skype also comes with a photo share feature where you can share pics with your contacts. Another notable feature is that of the Skype WiFi where you can connect to public WiFi spots using Skype credit. Skype clean interface has garnered an average rating of 4 stars.
Tango
Tango is a free messaging app that allos you to connect to your friends and family. You can send text messages, make video and voice calls, share photos, play games and the list goes on. Tango allows group chat up to 300 friends and you can also edit and comment on photos. You can make new friends and play games with your friends. Spotify allows you to listen and share songs on this app. An innovative feature of connecting with new people by shaking your smartphone was recently added. Tango is a complete social networking package with close to 500,000,000 downloads.
Hangouts
Hangouts is a messaging app that lets you send and receive messages, photos, videos and video calls. You can send and receive both Hangouts and SMS/MMS from this app. Group video calling is available up to 10 friends. Users can set their mood with emoji and also pep up their conversation using photos and GIFs. Hangouts with its notable features has over 330,160 users rating it as a 5 star app. Hangouts is available across all platforms including iOS.
LINE: Free Calls & Messages
LINE is another popular video/voice calls, messaging app that has 420 million users across the globe. New users need to register their phone number on LINE for security reasons. The app has a 4.2 star average rating. LINE comes with a host of features like sticker shop that helps make your conversation lively. LINE also has an app and game store of its own. Users can customize their app by browsing the theme shop. LINE is available across all platforms and thus provides you with multi OS support.
Yahoo Messenger
Yahoo messenger is a free voice and video call app which even lets you chat with your Facebook friends. Yahoo messenger is also available on iOS and thus the problem of cross platform calling is now over. Yahoo messenger supports free international SMS and also supports chat with Windows Live friends. The messenger has an average rating of 4.1 with over 170, 000 rating it as five star.
Conclusion
Video calling apps now do just more than the basic video and voice calling. These apps are now adding on features to give user much more than basic features. Multi-OS support has made these apps more popular and helped users to connect with their friends and families more easily. Other similar apps available on both the Android and iOS platform are WeChat and Fring.