The letter goes on to raise concerns over Apple’s blocking ... and it happens automatically right in the default Messages app on iPhone (represented by a blue bubble). The problem is when iPhone users ...

Need a break? Play the USA TODAY Daily Crossword Puzzle. The ad discusses the divide between iPhone users (or "blue bubble" people) and Android users ("green bubble" people). A message sent from ...

Blue bubbles versus green bubbles. In texting it's the difference between iPhone owners and Android phone users. Green bubble people can be made to feel like unwelcome party crashers. Blue bubbles ...