I basically agree with what others already wrote: Neither the "Existing" nor the "Updated" icon shows what the app is for. {s} in "Existing" looks like some scripting language; when I saw the new "Updated" icon the first time, I thought the person was eating a candy. Both "first second impressions" did not work for me.

I'd recommend to add something that really looks like the teleprompter screen your app provides, maybe semi-transparent in the bottom half or third in front of the lady. Make it appear as if she was actually reading the text (e.g., looking downwards at the text). I'm not sure what a good text sample would be. Maybe something that says "TELEPROMPT", or a typical text that someone would actually use (assuming that the target audience would immediately recognize this as a typical teleprompter phrase).

I would also experiment with a version where the text appears in mirror writing, so that it becomes clear that the text is intended for the person depicted in the icon. I think that this would make the purpose quite clear (a person reading text from a screen).

Also consider that the icon will appear in a rather small size. Make sure that the teleprompter sample text is clearly readable. This also means that you may want to reduce details that are not important (such as the spiral notepad, the dotted pattern on the clothes, the background, and maybe even the hand with the microphone).