No, unfortunately, roaming is not free for your group in the Cayman Islands with standard US (like AT&T or T-Mobile) or UK SIM cards. The Cayman Islands are not included in typical domestic plans, meaning you'll face significant roaming charges if you rely on your existing carrier. Triply offers a much more predictable and cost-effective way for your whole crew to stay connected, ensuring you can share those stunning beach photos without unexpected bill shock.
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Is roaming free in the Cayman Islands if our group uses our US (AT&T/T-Mobile) or UK SIM cards?
Updated April 22, 2026
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