Software that can be used as an alternative to Viber:
  • 598 votes
    WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.
    • Freeware
    • Android OS
  • 67 votes
    There are no limits. Call and message as much as you want.
    • Freeware
    • Windows/Mac/Android/iOS
  • 4.5 / 5
    2 votes
    Experience the free messenger that everyone’s talking about.
    • Freeware
    • Android OS
  • 4.7 / 5
    3 votes
    One app for all your shats and SMS. Chat with Phonebook, Facebook, GTalk and work contacts. Send free SMS to friends in US, Canada & India. Import Phonebook Contacts.
    • Freeware
    • Windows/Mac/Android