Book library
Add books, track progress, organize reading status, and preserve book context for notes and flashcards.
Android book tracker
Naitsundoku: Book Tracker
Track what you read, capture notes, review flashcards, and build durable reading habits from one focused app.
Core workflows
A study surface for readers who keep going.
Naitsundoku keeps library tracking, notes, review, and progress together without turning reading into a noisy dashboard.
Reading sessions
Capture session history, pages read, streaks, and long-term reading patterns.
Notes and reminders
Create manual notes, add optional page references, and schedule reminders when the plan allows it.
Flashcard review
Review questions in a spacious study view with hidden answers and difficulty feedback.
AI highlight tools
Use highlighted text photos to draft notes or flashcards from the passages you want to remember.
Badges
Unlock progress badges that reward sustained reading, review, note-taking, and study habits.
Access model
Start with the trial, keep the plan that fits.
Naitsundoku uses a trial, a free ad-supported tier, and paid plans for readers who want deeper study tools without ads.
Trial
31 days
Full access with ads
- Book library and reading sessions
- Manual notes and reminders
- Flashcards and review tools
- AI highlight notes and flashcards
Free
$0
Ad-supported after trial
- Book library and progress tracking
- Reading sessions and stats
- Manual notes
- No flashcards, reminders, or AI highlight
Basic
$5 monthly
Study tools without ads
- No ads
- Manual notes and note reminders
- Manual flashcards and review
- No AI highlight tools
Premium
$10 monthly
All features without ads
- No ads
- All Basic features
- AI highlight notes
- AI highlight flashcards
Plan selection and subscription management happen inside Naitsundoku through Google Play Billing.
Built around reading habits
For book tracking, notes, flashcards, and review.
BooksLibrary and progress tracking
NotesManual notes and reminders
CardsFlashcard review workflow
HabitsBadges, streaks, and stats
Naitsundoku policies
Privacy, terms, and support for the book tracker.
These pages apply to Naitsundoku specifically. Umbrella-wide Morrowshift policies can be added later when there are more products under the brand.