Tellie highlights the exact word you’re speaking as you speak it, so if you ad-lib a line, skip ahead, or backtrack to fix a flub, the highlight follows your voice instead of scrolling at a preset speed and leaving you behind. It can live in the MacBook’s notch, invisible to Zoom calls and screen recordings, so only you see the script. The base teleprompter is free; voice-follow scrolling and Keynote Presenter Mode require the $29 lifetime Pro unlock.