[mirko22]

if you do not visibly offer services in EU you dont have to comply to GDPR.

There are few examples in the law of what visibly means, such as having prices in euro or having EU contact numbers...

[StavrosK]

Would having a run-of-the-mill SaaS where users can sign up from wherever mean that you have to comply?

[mirko22]

I would say no, but I am not a lawyer and there are really no precedents for this at current time.