TSIM

TSIM is a Hong Kong-based eSIM provider that launched in 2021 and has built a strong reputation in Asia-Pacific markets. Coverage spans 200+ countries including all Caribbean destinations, with both regional plans (Caribbean-specific rates) and global all-in-one plans. The platform emphasizes reliability for business and leisure travelers, with straightforward activation via app and strong customer support.

This works well for Asia-based travelers heading to the Caribbean or frequent multi-continent trips where a global plan makes sense. TSIM's strength is understanding the needs of intra-Asia travelers who regularly cross multiple continents and value a single provider that works everywhere.