A day in Istanbul
Maps, chat and the ride from IST or SAW.
See Turkey plansPlans
Pick the number of days first, then the data. Packs run from 1 to 180 days; Premium and Premium Plus are separate prices for the same data and days.
A 1-day pack is that day’s total. Longer packs are one pool for the whole stay — they do not refill each morning.
A day in Istanbul
Maps, chat and the ride from IST or SAW.
See Turkey plansTwo weeks in Turkey
One quota for the whole fortnight around Istanbul, Ankara, Izmir, Antalya.
See Turkey plansA month in Turkey
Daily maps and mail without a morning reset.
See Turkey plansHow it works
Install on Wi‑Fi you already trust, before the flight. Data starts once roaming is on for this eSIM.
Search a country or region, then compare packs by data and days.
Checkout finishes in your panel. The profile is issued in minutes.
In My eSIMs, scan the QR or use the iPhone / Android install links — before you fly.
After landing, turn on data roaming for this line and choose it as the data SIM.
Why oSim
Prepaid data profiles, delivered instantly to your account.
The profile appears in your panel. Leave without waiting for a plastic card.
Scan the QR on Wi‑Fi, or use one-tap iOS / Android install from My eSIMs.
You pay what you see at checkout — not a surprise roaming bill. No contract.
On most phones the main SIM stays on for calls. Data runs on the eSIM.
Share the connection with a laptop or tablet on the listed packs.
5G is used when the phone and the area both support it; otherwise LTE.
Travel eSIM and SMS verification from the same account and balance.
Setup stalled? Open a ticket in the panel and attach the QR or error screen.
vs. roaming
Home-carrier roaming can land as a large line on the bill. A travel eSIM charges the price you see at checkout. When the pack ends, data stops — nothing extra is billed in silence.
| oSim eSIM | Carrier roaming | Airport SIM | |
|---|---|---|---|
| Price known upfront | 是 | Billed later | 是 |
| Ready before you fly | QR in minutes | 是 | Queue on arrival |
| Keep your main SIM | On most phones | 是 | Swap the card |
| Contract | None | Your home plan | Varies |
| Hotspot | Included | Varies | Varies |
Device check
Enable data roaming for the eSIM line and choose it as the data SIM. Menu names vary by brand.
One account
Top up once and use the same balance for eSIM data packs and SMS verification numbers. Developers can integrate through the oSim API.
Help
Device check, install, QR and setup help.
Open a ticket in the panel and attach the QR or the error screen.
eSIM help centre →Before you buy an eSIM, make sure your device supports eSIM and is not carrier-locked.
Search your model on the device list. Cellular iPads and many 2020+ flagship phones work. Wi‑Fi-only tablets and older phones usually do not.
After purchase, open My eSIMs. Scan the QR on Wi‑Fi, or use one-tap iOS / Android install.
iOS: Settings → Cellular → Add eSIM.
Android: Settings → Network & internet → SIMs → Add eSIM.
Turn on roaming for this line after you land.
A 1-day pack is that day’s total. 7, 15, 30 and 180 day packs are one pool for the whole stay — they do not refill each morning. “10 GB · 30 days” means 10 GB across those 30 days.
Hotspot is included on the listed packs. These are data profiles, not voice minutes or classic SMS — WhatsApp, maps, mail and the browser run on data. Keep your main SIM if you still need your own number for calls.
Once the profile is issued, you cannot cancel it yourself. Unused profiles follow the refund policy. Choose the days and the GB before you pay.
If you have a problem with setup, you can open a ticket. We are happy to help.
Attach a screenshot of the QR / error.