Absolutely. Viber is hugely popular, not just for text chatting, but for voice calls. For many kids around the world, it replaces traditional phone calls — particularly because it only costs data, not long-distance minutes. With a Viber tracker, you can see details of their voice conversations. While parental monitoring apps don’t actually record the voice conversations, you’ll gain a clear picture of who they spoke to, how long they spoke to them, and how often they have voice chats.