Sending a text message isn’t exactly rocket science, but attempting to decipher the various acronyms a**ociated with text messaging standards can get a bit tricky. For years, smartphones have utilized SMS and MMS protocols for sending and receiving messages, but tech is always moving forward. Now, there’s RCS for firing off messages and sharing photos. RCS has actually been around for a long time; it’s only now that the protocol is being introduced to Android’s Messages app.