what does it mean?
Peer'Em stands for peer-to-peer connections. All messages, pictures, videos, calls and video calls - the complete communication - are transmitted exclusively from one peer to another*. The communication is not stored on servers.
In end-to-end encryption, data is encrypted prior to transmission and decrypted upon receipt.
Peer'Em is for real friends. Peer'Em does not read out your phone contacts, so no buddy lists are created automatically. You have to actively contact your friends and thus only have your real friends in your friends list. Peer'Em can be used with several accounts, so that separate friends lists can be created.
Let your friends share in your life. Write important, confidential, private or even banal things and share this with one or more of your friends.
All communications you make with Peer'Em will be peer-to-peer and end-to-end encrypted* transmitted to your friend. So you can safely chat with your friends, make phone calls or make video calls.
*You can read more about that and exceptions in the FAQ under Privacy.