There software is not on all phones so the total number of SMS messages is irrelevant. Assuming the average text message are 80 charters and they can be compre

There software is not on all phones so the total number of SMS messages is irrelevant. Assuming the average text message are 80 charters and they can be compressed 75% then 10GB could be 500 million messages a day and 180billion / year which would be 10% of the total messages in a year. Or with enough meta data 10GB could represent a tiny fraction of that. So, IMO the real question is what information they actually collect not how much data they are storing.