Readr

Readr is an ebook reader you can talk to. You're reading Project Hail Mary and wonder: could Astrophage exist? Select the line and ask. The answer appears in the margin, drawn from the whole book, and says when it's pulling from real science instead. Lost the thread? Ask for a recap of what you've read so far, no spoilers. Press Listen and a natural voice reads from your page, on your device, no cap. Opens the EPUBs and PDFs you own. No account, no server. Free, open source. iPhone, iPad, Mac.