Install your eSIM on iPhone
You need: an iPhone XS or newer running iOS 12.1 or later (iOS 17.4+ for the one-tap install), Wi-Fi or your existing mobile data, and the activation email from esimple.
Option 1 — one-tap install (iOS 17.4+)
Open the activation email on your iPhone and tap the "Install on iPhone" button. iOS handles the rest: it asks you to confirm the plan, gives it a label, and adds it to your cellular settings.
After install:
- Settings → Cellular.
- Tap the new plan (it'll be labeled with the country).
- Turn off iMessage / FaceTime for it (optional but cleaner).
- Set "Cellular Data" to the new plan when you land at your destination.
Option 2 — QR code
If you're on iOS 16 or earlier, or the one-tap link didn't work:
- Open the activation email on a second device (laptop or tablet) so the QR is on a screen your iPhone can see.
- On your iPhone: Settings → Cellular → Add eSIM.
- Choose "Use QR Code" and point the camera at the QR.
- Confirm the plan when iOS asks.
Option 3 — manual entry
If the QR won't scan (bad lighting, low-res image), you can type the details. From the activation email:
- Settings → Cellular → Add eSIM → "Enter Details Manually".
- Paste SM-DP+ address and Activation Code from the email.
- Continue.
After installing — turn it on when you arrive
Don't activate the eSIM until you land. Validity starts the moment it first connects to a network at your destination. To delay activation:
- After installing, leave the plan on but set Cellular Data to your home plan.
- When you land, switch Cellular Data to the eSIM. Done.
Common gotchas
- "Cannot Add Cellular Plan" — your iPhone may be carrier-locked. See Will my phone work with esimple?
- No signal after switching — toggle Airplane Mode on then off, or restart. iOS occasionally needs a nudge to re-register on the new network.
- Both plans showing the same number — that's a display quirk of dual-SIM on iOS. Your data uses the plan you picked in Cellular Data.
If something still isn't working, email support@esimple.ai with your iPhone model + a screenshot of the Cellular settings screen.