Read Smarter.
Understand Deeper.
Remember What Matters.
The only reader built for people who read to learn.
No credit card required. Free tier available forever.
For readers who want more than a page count. Chaptera is for people who genuinely love reading — who underline sentences, sit with an idea before moving on, and want to walk away from a book having actually absorbed it. AI that works alongside your thinking. Not instead of it.
Ask Any Text a Question
Paste a passage from anything you're reading. No sign-up required.
Tools That Change How You Read
Built for readers who want to understand, not just finish.
AI Quiz Generation
Generate multiple-choice, true/false, and short-answer quizzes from any chapter or selection. No other reader does this.
AI Flashcards
Turn any passage into study flashcards instantly. Study and review them right in the app.
AI Study Guides
Full study guides with key concepts, practice questions, discussion prompts — generated from your books.
Character Tracker
AI extracts character profiles, relationships, arcs, and mention frequency as you read.
Plot Timeline
Chronological or thematic event timeline with importance levels and character involvement.
Concept Extraction
Themes, motifs, symbols, and key ideas automatically identified and tracked across your book.
5 Reading Modes
Focus, Bionic, Speed, Dyslexia, and Line Focus modes. All auto-hide panels for immersive reading. Zero competitors offer even one.
Academic Tools
Auto-generate citations (MLA/APA/Chicago), navigate cross-refs, browse figures, build bibliographies.
Your AI Study Partner, Built Into Your Reader
Other apps make you switch between reading and studying. Chaptera does both, simultaneously, with full context awareness.
You already
Highlight passages
Chaptera turns them into flashcards
You already
Re-read difficult sections
Chaptera explains them with AI chat
You already
Want to remember what you read
Chaptera generates quizzes to prove you do
PDF Conversion That Understands Your Document
Most converters just dump text. Ours analyzes columns, detects footnotes, preserves formulas, removes watermarks, and builds a real table of contents — so your EPUB reads like the original was designed for it.
- Multi-column layout detection (92.7% accuracy)
- Footnote and formula preservation
- Watermark and header/footer removal
- Cross-page paragraph stitching with CJK support
- Auto-generated table of contents from document structure
- Post-conversion quality scoring (0–100)
2-column layout • 47 footnotes • 12 formulas
Quality: 87/100 • 95% content retained
18 chapters • All footnotes preserved
Ask Your Book Anything
Our AI reads along with you. It knows which page you're on, what you've highlighted, and the full context of the chapter. Ask questions and get answers with clickable citations that jump to the exact passage.
- Full-book RAG with citation navigation
- 6 pedagogical approaches (key concepts, critical analysis, etc.)
- Library-wide chat — query across all your books
- Voice input for hands-free questions
- Persistent chat history across sessions
What does Newport call "shallow work"?
Deep Work
Professional activities in distraction-free concentration that push cognitive capabilities to their limit.
Jay Gatsby
Role: Protagonist
Arc: Rise and fall
Mentions: 847
Ch. 3: The Party
Importance: High
Characters: Gatsby, Nick
Theme: Illusion
Study Tools That Replace 3 Apps
Stop copy-pasting into Quizlet, Anki, or Notion. Chaptera generates quizzes, flashcards, study guides, character maps, plot timelines, and concept extractions — directly from what you're reading.
- Quiz generation: multiple choice, true/false, short answer
- Flashcard generation from any selection or chapter
- Full study guides with configurable sections and difficulty
- Character tracker with relationships and arcs
- Plot timeline with importance and character involvement
- Concept extraction: themes, motifs, symbols, ideas
Read How Your Brain Works Best
Different tasks, different brains, different modes. No other reader offers even one of these.
Focus Mode
Highlights current section, dims everything else. Auto-collapses panels for zero distractions. Paragraph, sentence, line, or word granularity.
Bionic Reading
Bolds the first letters of each word. Your brain fills in the rest faster.
Speed Reading
RSVP word-by-word display at your chosen pace. Train to read 2-3x faster.
Dyslexia Friendly
OpenDyslexic font, color overlays (blue, green, rose, yellow), enhanced spacing.
Word-by-Word Karaoke for Books
Not just text-to-speech. Every word highlights as it's spoken. Every sentence glows in context. Follow along visually while you listen.
See How We Stack Up
We're not being unfair. We checked every competitor. Here's what we found.
| Feature | Kindle | Apple Books | Readwise | Speechify | Chaptera |
|---|---|---|---|---|---|
| AI Book Chat | Coming | — | Highlights | — | Full book RAG |
| Quiz Generation | — | — | — | — | ✓ 3 types |
| Flashcard Generation | — | — | — | — | ✓ |
| Study Guides | — | — | — | — | ✓ |
| Character Tracker | X-Ray | — | — | — | ✓ AI-powered |
| Plot Timeline | — | — | — | — | ✓ |
| Concept Extraction | — | — | — | — | ✓ |
| Reading Modes | — | — | — | — | 5 modes |
| Word-Level TTS | — | — | — | Audio only | ✓ Visual karaoke |
| Academic Citations | — | — | — | — | MLA/APA/Chicago |
| Reading Analytics | Basic | Year recap | — | — | ✓ Full dashboard |
| PDF to EPUB Conversion | — | — | — | — | ✓ Columns, footnotes, formulas |
| Price | $11.99/mo* | Free app | $9.99/mo | $11.58/mo | $7/mo |
*Kindle Unlimited. Books purchased separately otherwise. Speechify Premium billed annually.
Academic Tools Built Into Your Reader
Citation generation, cross-reference navigation, figure galleries, and bibliography building — no other consumer ebook reader has these.
Citation Generator
One click to generate MLA, APA, or Chicago citations from any passage. Copy or export.
Cross-Reference Navigation
Jump between related sections, footnotes, and references within your book.
Figure Gallery
Browse all figures, diagrams, and images in an indexed catalog with context.
Bibliography Builder
Aggregate citations from highlights into a formatted bibliography. Export in any style.
Footnote Navigation
Navigate between footnotes and endnotes without losing your place.
Vocabulary Builder
Double-click any word. Get definition, pronunciation, CEFR level. Auto-save to flashcards.
Reading Analytics That Motivate
Streaks, goals, achievements, speed tracking, and activity heatmaps. Watch yourself become a better reader.
What Changes When You Read with Chaptera
“I asked Chaptera why two chapters seemed to contradict each other. It found the exact passages and explained the author’s shift in argument. I’d read that section three times and missed it completely.”
Sarah Kim
Medical Student
“I have ADHD. I used to lose my place every few paragraphs. Focus mode follows the line I’m on. I finished a full chapter without losing my place once. That has never happened before.”
Jamie Torres
Marketing Director
“The AI knew I was working through a specific argument across three chapters. I asked it to connect the dots — it pulled the thread better than my own notes had. That’s when I understood what context-aware AI actually means.”
David Reyes
PhD Candidate, History
“I don’t read more books now. I read the same ones more carefully. I generated a quiz after chapter 3 and failed it — realised I’d been reading words without actually thinking.”
Alex Liu
VP of Product
“The quiz Chaptera generated from my highlights was harder than my actual exam question. I came out of that test knowing I truly understood the material.”
Maya Patel
Undergraduate, Psychology
“My daughter has dyslexia and always said reading feels like work. With the yellow overlay and OpenDyslexic font, she said — for the first time — that she wanted to keep reading.”
Lisa Wang
Parent
Start Free. Upgrade When You're Hooked.
Every plan includes all 5 reading modes, annotations, and cross-device sync.
Read your first book deeply. All reading modes, highlights, and a taste of AI — enough to know if this changes how you read.
- 5 books in library
- 5 PDF conversions/month (columns, footnotes, formulas preserved)
- 5 AI questions/day
- All 4 reading modes
- Highlights & notes
Your AI reading partner for 25 books. Ask questions, generate flashcards and quizzes, and actually remember what you read.
- 25 books in library
- 15 PDF conversions/month (up to 900 pages)
- 30 AI questions/day
- AI summaries & quizzes
- Text-to-speech
- Vocabulary builder
No limits. Every book, every AI tool, every study feature. For readers who are serious about learning.
- Unlimited books
- 50 PDF conversions/month (up to 2,100 pages)
- Unlimited AI chat & study tools
- Full analytics & goals
- Academic tools
Frequently Asked Questions
Start Reading Smarter Today
95+ features. 5 reading modes. AI study tools no other reader has. Free to start.
No credit card required. Cancel anytime.