Will my US (AT&T/T-Mobile) SIM card provide free roaming in Panama?

Absolutely not. Relying on your US carrier for internet in Panama is a costly mistake that CheapESIM helps you avoid. While Panama uses the US Dollar, it's an independent country, not part of US domestic roaming plans. Major US carriers like AT&T, Verizon, or T-Mobile typically charge exorbitant international "Day Pass" rates, often $10-$14 daily. Over a week, this could easily cost $70-$98. A CheapESIM plan, however, offers data at a fraction of that cost, saving you significant money.