EU Commission investigating whether Apple should comply with Digital Markets Act
Google's letter claims Apple's services meet the thresholds of the act and should be regulated
iMessage's blue text bubbles key in retaining customer loyalty, while Samsung launched anti-bullying campaign against green text bubbles in 2019
Digital Markets Act defines gatekeepers as large online platforms that can create a bottleneck in the digital economy
Google under regulators' scrutiny for its services as well, including Google Play and Chrome
EU Commission confirms receiving the letter but declines to comment further
Apple previously stated iMessage does not constitute an important gateway due to its smaller scale compared to other messaging services
Commission has until February to reach a decision on the matter.