Three, but better
Starting at €3.50/day for Mobile Data
Save up to 90% on roaming costs by using Firsty
Use Firsty for data, Three for calls and messages
No contract, no hidden fees, no SIM swap needed
Trusted by 1.3M+ users
Trustpilot score of 4.8 out of 5!
One eSIM for the globe
A Free Global Connection
Three roaming vs. Firsty data plans
Fair prices, No hidden fees
why firsty?
Staying online, made easy
Free, Fast or Faster - You Decide
One SIM, Every Country
Upgrade or Pause - Whenever you want
Stop overpaying for roaming
You shouldn’t have to worry about high roaming costs while traveling. Three may charge expensive roaming fees, leaving you with unexpected bills—but that’s not how it should be.
There’s a smarter way: Firsty! Compare Three's international roaming costs with Firsty’s simple, affordable data plans. Transparent mobile data costs, Firsty ensures no surprise charges—just reliable global coverage at a fraction of the cost.
Using Firsty while traveling internationally can save you up to 90% on roaming fees—without compromising on coverage. Three limits you to a single partner network in each country, Firsty connects to multiple networks, always selecting the best available one for faster, more reliable data.
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questions and answers
As we develop our app you might encounter things you're not sure of. We're here to help. Below you'll find frequently asked questions on the Firsty eSIM, Firsty's data plans, and more.
Why is roaming with Three so expensive compared to Firsty?
Traditional telecom providers like Three charge high roaming fees because they rely on agreements with foreign networks. Firsty bypasses these expensive agreements by partnering directly with global carriers, offering free mobile data for essential apps and affordable data plans.
Does Firsty’s data plan cover all apps, or are there limitations?
Yes, Firsty covers all apps. Firsty Free provides unlimited access to essential apps like messaging and navigation. Comfort+ offers affordable global data with optimized speeds for specific apps while First Class provides full-speed data for everything, often at a lower cost than Three's roaming fees.
Can I use Firsty alongside my Three subscription/ SIM card??
Yes! Firsty works alongside with Three. This means you don’t need to swap out your existing SIM. You can keep Three for calls and texts while using Firsty for cost-effective mobile data when traveling.
Will I still be able to receive calls and texts if I use Firsty instead of Three for data?
Absolutely. Firsty only provides data, so your regular SIM can still receive calls and texts as usual. This means you can stay reachable while avoiding expensive roaming charges.
How do I check if Firsty is cheaper than Three roaming plan for my destination?
Simply compare Three roaming rates with Firsty’s Comfort+ or First Class plans for your treavel destination. Three charges per MB and/or offer expensive daily passes, while Firsty provides a clear, affordable alternative with no hidden fees.