Hey all solo maker here, just shipped the feature I'm most excited about.
You know the problem with most TTS tools: they free up your eyes, but your brain still can't keep up. Hit a dense doc or a hardcore explainer and the voice just drones on word for word by the end your head's mush and you're rereading it yourself anyway. Slow and exhausting.
That's the part I wanted to fix, so CastReader now has a Read & Explain mode. Instead of reading verbatim, it explains as it goes all in sync with the audio. Three things I'm proud of:
It explains, not just narrates it breaks down the convoluted bits and says them in plain language, so dense or obscure writing clicks by ear.
It marks up the page as it talks (my favorite part) a virtual pen moves across the original text in sync with the voice, circling and highlighting the key info, like taking notes by hand. Light touch, never covers the text; your eyes follow the pen, so you stop drifting off mid-listen.
Synced subtitles every line of explanation shows up word-by-word, so you read and listen at once.
