SInce here is written a lot of comparison, I would add a few. In Warsaw, antigen test costs 150PLN(33€), at the WAW 200PLN. In Prague city center, I paid for antigen test 200CZK(less than 8€), got SMS and test result email in less than 30 minutes, price of PCR varies from 814CZK to 1600CZK, express result in 90 minutes 4400CZK.