Questions About Unity version and Mobile Performance

[relevantname]

Hi, 

I would like to buy Obi Fluid for my mobile game. But before purchasing, I want to get some information about;

- Can I use Obi Fluid on Unity 2018.4.14f1(because of LTS support) ?
- Is Obi Fluid optimized for mobile devices? 
- Is there any minimum system requirements for mobile devices for running Obi Fluid smoothly?

Thanks in advance.