Starlightsm what you want is not possible.
completely 100% anonymous. Not possible, the bank will know you
offshore and pay 0% tax with zero risk. You do not have the budget for a proper setup. An
offshore company will report you if asked if your home country has enough leverage, whether Sweden does I don't know but it is a risk)
There are lots of rules in place to stop people doing what you are trying to do. Lots of companies will not do business with an
offshore company. If you want to sell via googleplay / apple, when you sign up as a business from an offshore region, do you think google / apple do not know what you are doing? Setting your address as a
belize company (this will require a bz address) and your
bank account details to get paid in another country, again they know what you are doing.
A lot changed in the last year for the worse to get away with things like this. Will you be able to prove the company is actual run from Bz? How are you planning on getting the funds from the business account to you?
You can not be 100% anon, 100% safe and cheap. Probably you can pick one of them for the long term. If you are thinking short term, then perhaps there are more options.
either way good luck, but be wary of people telling you things who are trying to sell you things