What file formats does Redia support?

Redia currently supports PDF documents, EPUB e-books, and web articles (via URL).

How accurate is the translation?

Redia uses state-of-the-art AI language models for translation, delivering high accuracy. It provides line-by-line alignment, allowing you to verify the original text against the translation at any time.

Can I use it offline?

Redia requires an internet connection for AI translation and analysis features. However, once a document has been processed, you can read the processed content even with a poor connection.

Are there educational discounts?

We are currently planning educational discount programs. If you are a student or educator, feel free to join our Discord community for the latest updates.

How is Redia different from pasting an article into ChatGPT?

Redia processes documents by first understanding the full context, then processing sentence by sentence, ensuring no silent summarising and higher accuracy. Every line keeps the original alongside it, and every AI answer carries a source link.

Can I cancel anytime after upgrading?

Yes. Your selected monthly or yearly plan renews automatically. You can cancel anytime in Settings, and it will not renew after the current billing period.

Redia

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AI-Powered Reading Companion

FreemiumAI PDF AI Summarizer AI Translator

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What is Redia?

Redia is an AI-powered reading companion that transforms complex academic papers, PDFs, EPUBs, and web articles into clear summaries, highlights, and diagrams. It offers features like continuous reading filter, line-by-line alignment, and evidence-based AI discussion to enhance comprehension and research efficiency.

What can Redia do?

Continuous Reading Filter
Automatically transforms complex text into fluent, easy-to-read content as you scroll.
Free Papers from Clutter
Extracts PDF content and reorganizes it into a comfortable single-column article with adjustable font size, line height, and width.
Line-by-Line Alignment
Provides precise alignment between original text and translation, ensuring traceability of data points and arguments.
Evidence-Based AI Discussion
Discuss and ask questions about documents with AI models; every answer includes source links to original passages.
Zoom in Zoom out
Switch between full-book summaries, chapter outlines, and original text for big-picture to detail views.

Who is Redia for?

Researchers: Read academic papers with cluttered PDFs reflowed into a clean single-column article as you scroll.
Students: Translate long documents with line-by-line alignment so every data point and argument stays traceable to the source.
Knowledge workers: Ask questions about a document and get answers with source links instead of copy-pasting into a general chatbot.
Educators: Switch between full-book summaries, chapter outlines and the original text to review material at the right depth.