About eSIMology
eSIMology sells travel eSIM data plans for 200+ countries and regions. Every price, network and speed is shown before you buy, eSIMs arrive in seconds, and ones never installed are refunded to your card.
Last updated 6 November 2026
Why we built it
Getting online abroad should be the easy part of a trip. Instead, travellers face roaming bills, airport SIM queues and eSIM shops that hide the speed after a daily cap or pay refunds in credit. We built eSIMology to fix that.
What makes us different
- Everything up front. Price per GB, the networks in every country, 4G or 5G, and the exact speed after any daily allowance: on every plan, before you pay.
- No app, no account. Buy as a guest with Apple Pay, Google Pay or card. Your eSIM comes by email with a QR code, a one-tap install link for iPhone and the codes for any phone.
- Your eSIM page. Data left, days left and a two-tap top-up, in your browser.
- Money back to your card. Cancel an eSIM not yet installed within 30 days for a full refund. Not credit.
Who's behind it
eSIMology is a UK business run by Bez. Every email gets a personal answer, not a bot.
Talk to us
Questions about a trip, a phone or an order? Email hello@esimology.com or use our contact page. We reply within a few hours, every day.
Our promise
Doesn't connect? Money back to your card. Cancel any eSIM not yet installed in two taps.
Read the promise