akanyol, thanks for your feedback. We're able to support any network that has a free email-to-SMS service -- networks currently supported are listed here. We're happy to add extra networks if you can let us know the details of the network's free email-to-SMS service. Unfortunately we cannot support networks that do not have free email-to-SMS services.

Are sms reminders 100% free? no risks of getting charged by my network (o2) or RTM?

thanks in advance,
Dave

Hi Dave,

There is no charge from RTM, but your network may charge you to receive text messages; you may wish to check with them before using this service. Some networks also require that you activate an email-to-SMS service with them before you can receive reminders.

Hope this helps!