Is roaming free in Jamaica with my US (AT&T/T-Mobile) or UK/Canada SIM card, or should my group use Triply?

This is a crucial point for anyone traveling to Jamaica! As an independent country, Jamaica is not included in standard US, UK, or Canadian domestic plans. Your home carrier, whether it's AT&T, Verizon, T-Mobile, or a UK/Canadian provider, will almost certainly charge your group expensive international "Day Pass" rates or per-MB fees. Triply offers a much more budget-friendly and hassle-free way for your entire crew to stay connected without those hefty roaming surprises.