Seems like it should’ve been there from the start but it wasn’t. Thankfully, Amazon finally decided to add Alexa voice support to the app. The Amazon shopping app gave access to Alexa voice commands, but it makes more sense to have that within the Alexa app. When the update rolls out, this should give you access to Alexa skills, help you send messages, control music playback, and the like. Hotword detection should work within the app, meaning you can say Alexa and it would respond. But as an Android Police reader pointed out, hotword support doesn’t seem to work even within the app but there is a big Alexa button in the middle of the app’s navigation bar to start voice commands. Hopefully, Amazon fixes this in the future.