Flexiroam

Flexiroam stands out for offering both eSIM and physical SIM options, so you can pick whichever suits your device and trip. Its pricing is aggressively budget-friendly, with daily plans starting below one dollar for travelers who want rock-bottom costs. It covers 200 plus countries and regions through its own dedicated app. The dual-SIM flexibility means you're not locked into one format.

The focus on affordability appeals to budget-conscious backpackers and students who value cheap data over premium speeds or extensive features. It's a straightforward choice for those prioritizing cost above all else.