Is roaming free in Poland with my UK or US SIM card, or should I use eSIMAdventures?

When exploring Poland, a key member of the EU, roaming charges can vary significantly based on your home SIM. For EU citizens, 'Roam Like at Home' generally applies. However, if you're traveling from the UK (post-Brexit), many carriers like O2 or Three have reintroduced daily roaming fees. For US travelers, traditional roaming with carriers like AT&T or Verizon can be very expensive. With eSIMAdventures, you get transparent, fixed-cost data plans, ensuring you stay connected without bill shock, whether you're navigating Krakow's Old Town or hiking in the Tatra Mountains.