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About
Reedr — the calculator for letters.
A calculator takes numbers and computes answers. Reedr does the same for the written word. Import a book, select the passage you're curious about, and press Compute.
READ WITH PURPOSE Bring in the books you want to study and read them in a clean, distraction-free reader. Every text is broken into verses — tap one, or several, to select exactly the passage you want to work with. No copying, no pasting, no switching apps.
THE COMPUTE KEYBOARD Six operations, one keypad — run any of them on your selected passage:
• Σ Summarize — condense a passage to its essence • ≡ Define — get clear explanations of terms and ideas • ∵ Evidence — see the reasoning and support behind a claim • 文 Translate — read any passage in your language • ≈ Compare — set two ideas or passages side by side • ? Question — ask anything about what you just read
Select. Choose an operation. Compute. It's that simple.
GUIDES THAT MEET YOU WHERE YOU ARE Reading summaries and guides adapt to the level you choose, so a first-time reader and a scholar can both get what they need from the same chapter.
GO DEEPER WITH RESEARCH When a passage sparks a bigger question, take it further — explore context, background, and connected ideas without leaving your book.
ASK REEDR Have a conversation about your reading. Ask Reedr is your companion for the questions that don't fit on a keypad.
WHY REEDR? Because understanding shouldn't be passive. Highlighters and bookmarks remember where you were — Reedr helps you understand what you read, verse by verse, the moment you read it.
Download Reedr and start computing the books you've always wanted to truly understand.
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What's New in Reedr Books
1.0
September 22, 2026




