White label — this entire store can wear your brandGet in touch

Land, and you're
already connected.

A travel eSIM for data and a real local number for calls — both live before you finish taxiing to the gate. One QR code, no roaming bill, no SIM tray.

White labelGet in touch
165
Countries covered
90s
Average time to online
$3.20
Data plans start from
173
Destinations
Where to next

Popular travel destinations

Europe RegionalFrom
£4.50
ThailandFrom
£4.50
FranceFrom
£4.50
JapanFrom
£4.50
Why simsonic

Stay connected
while travelling.

Browse data plans

International data plans

Get cellular data that fits your budget and your itinerary. From 1 GB to unlimited — simsonic’s got you covered.

Easy to use

Buy a plan and scan one QR code — your eSIM activates automatically the moment you reach your destination.

Avoid roaming charges

Know exactly what your connection will cost before you take off — no surprise roaming bill waiting when you get home.

One eSIM for all your travels

Add new destinations to your existing simsonic eSIM — no need to install a new one every time. Just top up and connect.

Get mobile data usage alerts

Don’t risk running out of data at the worst possible moment — we’ll notify you when you’ve used up 80% of your plan.

Global and regional plans

Stay online wherever you go — pick a Global eSIM plan or a regional plan for Europe to explore whole regions and beyond.

How to use the simsonic eSIM service

How does simsonic work?

Don’t have the simsonic eSIM app yet? Download it from the App Store or Google Play.

1

Choose a simsonic data plan for your trip

Select your destination and pick your travel eSIM data plan.

3 GB30 days
2

Download simsonic and set up your eSIM

Set up the eSIM on your device by following the instructions in the app.

eSIM installed
3

Enjoy staying connected!

Your plan activates when you reach your destination, or 30 days after purchase.

THThailand
Active
Remaining data5 / 5 GB
Expires in29 days, 7 hours
Voice · Phone numbers

A real local number,
wherever you land.

Add a dedicated phone number in the country you’re visiting — take calls and texts on a local line while your data runs on the same eSIM. Perfect for bookings, rideshares, and staying reachable without swapping SIMs.

  • ✓ Calls & SMS on a genuine local number — no roaming rates
  • ✓ Runs alongside your data plan on one eSIM
  • ✓ Monthly, cancel anytime — keep it only while you travel
Learn more
+44
+44 7700 900142
United Kingdom · London
$2.99/ month
CallsSMSVoicemailKeep while abroad
+1
+1 415 555 0142
United States · San Francisco
$3.49/ month
CallsSMSVoicemaileSIM data ready
+81
+81 90 1234 5678
Japan · Tokyo
$3.99/ month
CallsSMSData pairing
Questions

Frequently asked

Support · typically answered within a few minutes
What actually is an eSIM?
A SIM card built into your phone. Instead of a plastic chip you install a data plan from a QR code — nothing to ship, nothing to swap, nothing to lose in a hotel room.
Will simsonic work on my phone?
Almost every phone released in the last few years supports eSIM — iPhone XS and newer, Pixel 3 and newer, most recent Samsung Galaxy S and Z models. We show compatibility on every plan before you pay, and refund you if your handset can’t take it.
When does my data plan start counting down?
When you first connect at your destination — not when you buy. Install it a week before you fly and nothing ticks until you land, or until 30 days after purchase, whichever comes first.
Can I keep my normal number for calls and texts?
Yes. Your usual SIM keeps your number for calls and texts while the eSIM handles data. Prefer a local line too? Add a simsonic phone number and it runs on the same eSIM.
What if I run out of data mid-trip?
Top up from your account in two taps. The same eSIM keeps working — you never rescan a QR code, and we warn you at 80% so it rarely comes to that.
How is a simsonic phone number different from data?
A data plan gets you online; a phone number gives you a real local line for calls and SMS in the country you’re visiting — handy for bookings and rideshares. You can buy either on its own, or both on one eSIM.
Download the simsonic app

Your next flight
deserves signal.

Buy data, add a local number, and manage every trip from your pocket — on iPhone and Android.

Download on theApp StoreGet it onGoogle Play