Location tethering info that you share will be viewable by any goTenna app user (plus subscription not required).
SMS Network relay recipients do not require a Plus subscription.
No. The person who activates location tethering must be a goTenna plus subscriber.
Today, goTenna features used by emergency responders are free to use without a subscription and will remain so for ever. As we learn more about how goTenna Mesh gets used during emergencies, we will continue to update our Plus subscription model.