Alter Text in iPhone Recording

I have an iPhone screen-recording of the Messages app and need one bubble’s wording swapped out. Only the content of that single message should change; everything else—the bubble color, timestamps, typing animation, resolution and audio—must stay exactly as captured so the edit looks native to iOS... (Budget: $30 - $250 USD, Jobs: A/V editing, After Effects, Audio Services, iPhone, Video Editing, Video Post-editing, Video Processing, Video Production)