Edit: I'm not complaining about the regulations in this comment, I'm saying that it's bad advice to ignore them just because you're a small business unless there is an exception for them. As it happens, exceptions for small business are planned.
Edit: I'm not complaining about the regulations in this comment, I'm saying that it's bad advice to ignore them just because you're a small business unless there is an exception for them. As it happens, exceptions for small business are planned.
The basics are simple enough to run a legit business. There are some obvious and basic data protection requirements but I wouldn't call a gray zone unless pushing for it. Also, there's no EU police checking apps for violations etc. You don't just get sued the moment your app hits the App Store.
It mainly boils down to: write ARIA tags and adhere to WCAG version 2.1 level AA.
There are some parts of GDPR that are non-negotiable however, even for indie hackers. If you collect personally identifiable info, you NEED a privacy policy, a process for users to get their data deleted if they request it, for example.