Openline follows your system theme by default — turn on dark mode in iOS/Android and the app switches automatically. If you want to force one theme regardless of system, go to Settings → Appearance in the app and pick Light, Dark or System.

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.