The OpenSim journal
Find your eSIMCompatibility, installation, roaming settings and troubleshooting before and during a trip.
Join OpenSim referrals on the website or in the app, share your link, QR code or button, and earn store credit when the friends you invite buy eSIMs.
See when an OpenSim referral reward shows up, why a purchase might not count, and how refunds and payment disputes take a reward back from your store credit.
Learn when data roaming should be on or off for a travel eSIM, how to avoid home SIM roaming charges, and what settings to check after arrival.
If your eSIM is not working abroad, check coverage, mobile data line, roaming settings, APN, and installation before deleting the eSIM.
Check whether your iPhone, Pixel, Samsung or Android supports eSIM. Find the Add eSIM setting or EID, then confirm the sales region and carrier lock.
Learn when to install an eSIM before travel, when validity starts, how to activate it abroad, and which phone settings to change after landing overseas.
