iPhone SMS Messages Aren’t Green for the Reason You Think
 

Every year we see new articles grumbling about green chat bubbles in Messages for iPhone. Many treat the bubbles as a way to label Android owners as outcasts, but the truth is much more mundane. We’ll clear things up by taking a brief look at the history behind the green labeling for SMS text messages.

https://www.howtogeek.com/785247/iph...son-you-think/