As more and more seniors start to use smartphones, I get more and more questions about which cell phone service to choose.
At the moment, in general I am recommending Consumer Cellular, especially for use with an iPhone, and for iPad owners. CC is easily accessible by phone.
That does not mean that there are not plenty of excellent alternatives.
In the past I have recommended Republic Wireless as costing a bit less. Republic Wireless does not communicate by phone but only by email. Recently a resident had to go through a procedure of taking out the SIM card and upgrading to restore a locked up phone back to use, before re-inserting the SIM.
I have also used PureTalk. Phone support is very good and prices are competitive. This service uses AT&T as opposed to the others here which use Sprint. I have heard that Pure Talk belongs to AT&T.
FreedomPop offers the lowest cost service but phone support is terrible. I use it anyway.
Another service with low cost is Tello, which I have not tried, but offers phone, text, and data at just $10 a month.