CastReader — Text to Speech, Read Aloud + AI Explain
Overview
Read aloud with synced highlights and AI explanations. Supports Kindle, PDFs, articles and books in 9 languages.
CastReader helps you stay focused on long content by combining natural text-to-speech, synchronized highlighting, and automatic scrolling. Listen and follow the text at the same time, without losing your place. Use AI Explain when a passage is difficult. CastReader marks up the original page and walks you through the important ideas without replacing the source text. **What you can do** - Read webpages, articles, PDFs, Word files, text files, and Kindle Cloud Reader aloud - Follow synchronized word and paragraph highlights while listening - Ask AI to explain difficult sections on the original page - Automatically extract the main content while skipping navigation and ads - Click a paragraph to continue from that position - Adjust playback speed and choose available voices - Use the document reader without changing the original layout **8 supported reading languages** English, Mandarin Chinese, Japanese, Spanish, French, Brazilian Portuguese, Italian, and Hindi. CastReader detects the content language automatically. English and Chinese include expanded voice choices; the other supported languages use an automatically selected matching voice. **Free and Pro** Start free with 20 minutes of read-aloud and 3 AI Explains each day. Pro unlocks unlimited listening, unlimited Explain, faster playback, and more premium voices. **Privacy** CastReader processes text only when you ask it to read or explain. Anonymous product analytics never includes page text, document content, browsing history, file names, or personal information. Audio is generated on demand. **How to start** 1. Open a webpage, Kindle book, or document. 2. Click CastReader or the headphone button on the page. 3. Choose Read Aloud or Explain. 4. Listen while the original text stays highlighted in sync.
Details
- Version1.2.27
- UpdatedAugust 3, 2026
- Size13.61MiB
- Languages9 languages
- Developer
- TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
- D-U-N-S599695573
Privacy
CastReader — Text to Speech, Read Aloud + AI Explain has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
CastReader — Text to Speech, Read Aloud + AI Explain handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site
