Install on iPhone

1. Connect to Wi-Fi before you fly.
2. Open Settings → Cellular → Add eSIM.
3. Scan the SecretESIM QR or enter SM-DP+ and activation code.
4. Label the line “SecretESIM”.
5. Keep your home line for calls/SMS. Set Mobile Data to SecretESIM.
6. Turn Data Roaming ON for the SecretESIM line only.

Install on Wi-Fi, not on the airport cellular you are about to replace. Scanning the QR twice can lock the profile — if that happens, ask Support for a reissue, do not buy a second pack.

After install, keep your home line for calls and SMS. Set Mobile Data to SecretESIM. Data Roaming must be ON for the travel line and can stay OFF for the home line to avoid bill shock.

APN is usually internet and is written on the plan card. If the line shows bars but no data, open Connectivity Doctor or top up if your plan is empty.

SecretESIM is data-only: WhatsApp and iMessage use the eSIM data path; your MSISDN does not change. Compatible phones are listed under Phones. Carrier-locked handsets may refuse a travel eSIM even if the model supports eSIM.

Need the same steps in the app? Deep link secretesim://esims opens My eSIMs. Human support is one tap from the chatbot and receives the chat transcript.

Short install page · Connectivity Doctor · Compatible phones