Keepgo

Keepgo has been operating international roaming solutions for years, building a reputation for straightforward pay-as-you-go data plans. Its key pitch is that your unused data doesn't vanish after a set period, so you can spread a balance across multiple trips without waste.

The service covers most countries, and you load credit that stays available whenever you need it. It's a good fit for occasional travelers who want data flexibility without expiry deadlines.