This is for landlines and older people. So your going to give your grandmother some kind of phone she is clueless with and tell her to leave it out of the shower/bathtub where most elderly falls occur. You must be one mean sob? This requires a land line, which costs about $20 a month.
Grandma and Granpa don't order items like these for themselves. And neither set of my parents, have cellphones. Some have tried to make large button, elderly items for just this. There's a reason Life Alert is still successful. If you read the latest news on this one large order, you will see not only is the order size significant, they have already filed an 8k for a total of over 1/3 million dollars, with more orders to come for a few months. So it is selling and being reported right under the noses of those claiming it isn't selling.