Free has a catch
Ads and throttling. Fine for WhatsApp. Poor for a week of maps-and-photos if you refuse to pay.
Travel eSIM
Firsty travel eSIM
A global travel eSIM with a free tier — slow and ad-supported unless you pay for speed.
About Firsty
Firsty is a global travel eSIM. The pitch is one profile for many countries, with a free tier if you can live with ads and slower data. Paid plans buy speed, hotspot use and fewer interruptions.
Free is not a holiday streaming plan. It is maps, messages and a backup if you would rather not roam on EE for a weekend. Read the current free limits on Firsty’s site — they change.
Keep your UK SIM for the number. Firsty also sells in-app calling; that is separate from a UK mobile number and PAC switch.
Coverage abroad: One global eSIM on local partners in a long country list
Typical plan types: Free (ads, slower), paid GB or unlimited-style speed tiers
UK use: Backup data or visitor use — not a Frome monthly SIM
Key points
What matters before you buy a Firsty pack.
One eSIM, many countries
Install once. The free and paid tiers ride the same profile.
Pay when you need speed
Upgrade for hotspot and streaming. Confirm today’s tiers in the app.
Not Lebara
This is travel data, not cheap calls home on a UK SIM.
Pros
- A genuine free option if you accept the limits
- One global profile
- Paid speed when the free tier is not enough
- Useful as a spare line next to a UK dual-SIM
Watch-outs
- Free data is not unlimited holiday internet
- Ads and speed caps annoy some people immediately
- Not a UK phone number
Consider Firsty if…
Maybe skip if…
Questions about Firsty
Travel data, not a UK home SIM. Checked September 2026.
Is Firsty actually free?
There is a free tier. It is slower and shows ads. Paid plans buy speed. Read the live limits.
Is Firsty a UK network?
No. It is a travel eSIM. Everyday Frome signal still belongs to a UK host.
Firsty or Ubigi?
Ubigi is paid data packs on a reusable profile. Firsty leads with a free global line you can upgrade.
Compare other travel eSIMs
Same job, different shops. Then open the official store.