You can access most of your apps or sites using mobile data.
Difficulties with using the app or sites happen if they have a security feature that checks your IP address. It may recognize your IP Address as located in another country when using your eSIM mobile data. Our data services require a different method of routing and are uses a roaming platform so servers are in other locations than the country you are in.
Some of our customers use VPN as a workaround. It works on some apps or sites but we can't guarantee it will work on all since some have their security features that still trace the original connection even with the use of VPNs.
We are sorry for any inconvenience this may have brought you. However, we cannot control this on our end as we are dependent on the services of the providers in this case.