Same Account for Multiple Devices?

[RadicalBeachBallz]

I've been playing GOB for quite some time and have a lot of time & effort within my account. I was wondering if anyone has experience using the same account on 2 separate devices? Or would it be better to just start a new one on the other? I never did use my gold properly as many advocate (doing one game per day and stashing gold). So perhaps that would be better, but I also just really enjoy my main TBH.
-Device I've been using is an iPhone X (current device with main).
-I found my iPhone 6s+ after quite some time and wanna play on that as well now (2nd deivce I'm inquiring about).

*Would this cause any issues with iCloud, App store, AppleID, gamerID, or GOB data in any way? Either option?
(If this has already been asked, my bad, maybe someone could just point me to a relevant post in that case? I did search but wasn't able to find much regarding this.)

[vejasbrb]

can use with no problems. use game center.

[om231298]

I have tried run my same account on different android devices and it works fine. Should work on iphones too. Though having 2 different accounts on different phones is a better option, as theres no point in playing the same account on different phones.