App Overview

Bookly: Book Tracker icon

Bookly: Book Tracker

TwoDoor Games · Books

Bookly helps you track your reading in real-time, manage your books, make a habit out of reading and see your progress over time.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.6
61,418 ratings · Top 15%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Bookly: Book Tracker: map the core Books workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement a personalized recommendation engine.

Assumption to check: Difficulty in finding new books based on personal preferences

Validate with people who use this workflow before building.

Hypothesis 2

Add detailed reading analytics and insights.

Assumption to check: Limited tracking features for reading habits

Validate with people who use this workflow before building.

Hypothesis 3

Enable users to share their reading lists and progress on social media.

Assumption to check: Inadequate social sharing options

Validate with people who use this workflow before building.

Hypothesis 4

Simplify the onboarding process with guided tutorials.

Assumption to check: Overwhelming UI for new users

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Bookly helps you track your reading in real-time, manage your books, make a habit out of reading and see your progress over time. Add books, e-books or audiobooks to your collections, use the timer to track your reading and get access to awesome stats that will help you improve and read even more. Set goals and reminders to stay motivated, get weekly and monthly or yearly reports on your progress. You can better rate your books by going beyond the classic five star ratings by adding custom ones like: inspiration, heartfelt, love, spice, humor, and many more. Bookly also allows half-star ratings. TRACK YOUR READING IN REAL-TIME - Start the timer every time you read with a simple tap - Record your current page number of the books you're reading - See how long it will take you to finish the book at your current pace - Set a Book Goal to finish your book by a given time - Add your own rating, thoughts, and quotes for each book - Play ambient sounds while you read - Generate awesome Infographics style reports for every book - Unlock achievements to stay motivated and read even more GET READING STATS & RESULTS - Get tons of insightful Stats: total read time, pages read, reading speed, estimated book finish time, daily reading time, days you read in a row, reading streak and more - Generate Reading Reports with graphs and stats per book/month/year - Set Monthly or Yearly Goals in number of hours, pages or books - Set daily reminders to keep you motivated to achieve your reading goals - Use the powerful Bookly Assistant to read more, get personalized reading suggestions, reminders, reports and a lot more - Share your progress directly from the app KEEP TRACK OF YOUR BOOKS - Track and manage your entire library of books, e-books and audiobooks - Setup your own custom book Collections, like "Wishlist", "Favourites" - Get book details by scanning the ISBN barcode or searching online directly in the app - Store and sync your books among devices using iCloud - Never lose a book again, mark a book as lent or borrowed KEEP TRACK OF YOUR BOOK CHARACTERS - Track and manage all characters that you meet in your reading journey - Track how they evolve over time, what challenges they face, the relationships between them and much more. KEEP TRACK OF READATHONS - Track your readathon progress in real time - Track books read, reading time and pages for any period of time - Track readathon prompts - Get notifications and stay on track - - - Bookly is free to download and use. No online account or signup needed. The Pro version is free with a 7 day trial, after which we offer three subscription packages: $4.99/month (1 Month Subscription), $19.99/6 months (6 Month Subscription), and $29.99/year (1 Year Subscription). All other features remain free to use indefinitely. These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Subscription service conditions: - Payment will be charged to your iTunes Account at confirmation of purchase - Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Your account will be charged for renewal within 24-hours prior to the end of the current period - You can manage your subscription and switch off auto-renewal by accessing your Account Settings after purchase - Refunds will not be provided for any unused portion of the term - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable - All personal data is handled under the terms and conditions of Bookly’s privacy policy. More details can be found here: http://getbookly.com/privacy-policy/ http://getbookly.com/terms-of-use/ *Important: This app is for book TRACKING and MANAGEMENT. Book content and the actual reading is not done in the app.*

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.