Offline-friendly install guide

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.