Read more in the “About this app” section. Google uses a large number of background services to communicate with their. The Speech Services by Google app not only provides text-to-speech but also empowers applications with speech-to-text functionality to convert your voice to text. Your app has a new name: “Speech Services by Google” and a new logo.
Note, on many Android devices, Speech Services by Google is already available, but you can update to the latest version here. Select Speech Services by Google as your preferred engine. To use Google Text-to-Speech functionality on your Android device, go to Settings > Languages & Input > Text-to-Speech output.