SmithHsu

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.