You can use the following functions.

1. On the one page Showing the game score of your BattleGrounds friends.
It is automatically refreshed and gives a notification to you.
So you can know if your friend is on-line.

2. Showing the score graph for the all seasons.
You can remember the day when achieving level-up.

3. Messanger
The messanger function is useful to invite friends to on-line.
It is possible even if you met them in BattleGrounds and do not know their phone number.

4. Link
You can move to the youtube channel of your PUBG friends and show their best play.

Have a fun!
With your PUBG Friends ^.^

P.S.
If you want to update the address of your youtube channel please send your ID region address to me.

My mail address :
[email protected]