Using 2 different crypto platforms.

Me and my friend have made an account on Revolut (currently using and investing on ETH).

I have also created another account only for me on another crypto application ( capital.com ).

I didn’t invest yet on capital.com and if I do I will just give 10/20 euro an months.On Revolut we are putting the same amount of money 100 euros per person.

Should I also invest on the other platform or not?

Ps ,we trust each other I have all his information and everything so we can’t just steal our money.