I've always used vyber to communicate and now I want to change that. I read that there are so many apps out there but it's hard for me to understand all the functions. I'm waiting for your advice.

Read about it on the Internet. There are really a lot of applications for communication. As for me, I use WhatsApp. This messenger has a lot of good features. In addition, you can always call anywhere in the world or write messages without restrictions. It is also possible to send large files. In order to use all the features of WhatsApp you can install Softgoza updates

Yes, there really are quite a lot of messengers now and it's hard to pick just one. For example, I think Whatsapp might work for you, because it is similar to vyber but with more features. But you can also read different reviews about messengers in the Play Store.