Is it safe to use the android/ios client on _several_ devices?

Hello,

Is it safe to install and use the android client on several tables
(without using it at the same time)?

I have several android tablets of different sizes and colors (red, blue). I would use the blue one (big screen) at the desk,
the red one when moving about.

I use it on two. No problems so far.

Thanks for the query, @paperbrain. Quite safe - like @Petro, several users have the mobile apps installed in both phones and tablets and have had no issues handling multiple devices so far.