A killer feature here could be emjoi options-which is incredibly important for people that are more expressive through smileys and emoticons than through plain, old-fashioned words. There, you can go change your profile photo, change your privacy settings, backup your messages, and even read through the fine print and legalese. Almost everything about your account or app experience can be taken care of with a visit to the app settings. In terms of usability, both apps work almost intuitively. No, WhatsApp has no personal computer app. Yes, calls can be made to available friends on desktops and laptops, making communication interchangeable between phones and PCs.

This is its killer feature, allowing VoIP calls for free between Viber users, and for a price if calling a non-Viber number. This is especially important for OSes that don’t have chat history support. Yes, chat history can be backed up manually and emailed. Audio and video clips cannot be backed up, however. Yes-for Android, Windows Phone, and Nokia. This is its killer feature, allowing the users a poor man’s walkie-talkie feature.

You can even switch a call from mobile to PC and back to mobile-if you’re feeling especially adventurous. But Viber takes the cake here because of its Windows and Mac apps, giving users the option to really have access to their app anywhere. Both Viber and WhatsApp are found on the most popular mobile operating systems on the market.

Viber vs whatsapp vs hangouts caller