Airalo

Airalo dominates the eSIM marketplace by sheer breadth, covering every inhabited continent with local, regional, and global prepaid plans. Its app handles installation via QR code and lets you top up or swap plans mid-trip without reinstalling.

The range of options appeals to different trip lengths, from single-country visitors to multi-month travelers. Fast activation and straightforward pricing make it a solid default choice for most travelers new to eSIMs.