What to choose ? MT4 for actual existing Signals or MT5 betting on Future ?

 

Hi,

 

I'm a new comer and I want to install MetaTrader to use some SIGNALS, first, and to train on Trading, second...

But I don't know what is the right choice (or the best choice is there is no bad choice) 

What to choose ? MT4 for actual existing Signals or MT5 betting on Future ? 

Thanks for your help and your kind patience...

Fyx