App Overview

Bookshelf-Your virtual library icon

Bookshelf-Your virtual library

SquidBit d.o.o. · Books

Organize book collection by creating virtual shelves and tags.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.8
2,886 ratings · Top 5%

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 included20 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 Bookshelf-Your virtual library: 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 personalized recommendations based on user reading habits.

Assumption to check: Limited book discovery features

Validate with people who use this workflow before building.

Hypothesis 2

Simplify the subscription process with clear explanations and benefits.

Assumption to check: In-app purchasing can be confusing

Validate with people who use this workflow before building.

Hypothesis 3

Add community features for sharing book reviews and recommendations.

Assumption to check: Lack of social features

Validate with people who use this workflow before building.

Hypothesis 4

Enable offline reading and library access.

Assumption to check: No offline capabilities

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

Organize book collection by creating virtual shelves and tags. Track your reading progress and set reading goals to stay motivated. Manage a wishlist of books that you want to read (TBR). Discover great new reads: rate, review and share book recommendations. Create your own social profile and allow friends to follow your reading journey. Bookshelf is a free service with a sleek, functional and user-friendly interface. Some advanced features are covered by Bookshelf Pro subscription plans. ORGANIZE YOUR BOOKS - Catalog books using fast and easy to use ISBN barcode scanner - Batch scanner option allows to rapidly scan multiple books at once - Books can be added using search functionality (title/author/ISBN) - Old and rare books can be added manually - Import books from a CSV file generated by other popular book apps - Import books from Goodreads CREATE SHELVES AND TAGS - Organize books by creating virtual bookshelves and tags - Use search functionality to quickly find books on your shelves - Sort your books by title, author, number of pages, publication date, etc. - Use filters to display books matching your criteria - Track your lent and borrowed books - Add information about your book purchases - Organize books by series and volumes - Create personal notes or add other useful information - Add quotes by simply scanning the text with our OCR reader - Multiple book selection; apply batch operations - Grid view available - Dark theme available SET CUSTOM READING GOALS - Create annual reading goals to stay motivated - Define custom date range goals and share them with your friends TRACK YOUR READING - Log how many pages you have read so far and when did you start and finished reading a book - You can record multiple readings for each book SEE WHAT YOUR FRIENDS ARE READING - Create your own reading social profile - Allow your followers to see your last read books, wishlist and reading goals DISCOVER NEW BOOKS - Discover bestselling books in different categories - Share your favorite books with your friends on social media VIEW YOUR STATISTICS - Rich statistics about your books, purchase, reading progress, ratings, top authors, top categories etc. MANAGE YOUR WISHLIST - Maintain a wishlist of books that you want to read - Book price tracking and price alerts available in some countries RATE AND REVIEW - Help others to discover great books and find books for yourself - Rate books with 5 star rating (half-star ratings available) - Read book reviews from others and leave your own opinion NEVER LOSE YOUR DATA - Your data is securely stored on our servers and it's linked to your account - If you change your device/platform, you just need to log back in with your username - You can export data to a CSV file to create your own backup - You can export your data as HTML web page for easy printing with cover images BOOKSHELF PRO PLANS - Bookshelf is free to download and use - Some advanced features are covered by Bookshelf Pro subscription plans - Bookshelf Pro includes a 7-day free trial period after which you can choose between monthly, annual or lifetime plans OTHER NOTES - This is an app to organize your books and to track your reading - Reading is not available within this app FOLLOW US Stay in touch for new features and improvements - Instagram: https://www.instagram.com/bookshelfconcept/ - Facebook: https://www.facebook.com/bookshelfapp/ FEEDBACK AND SUGGESTIONS [email protected] https://www.bookshelfapp.info * Privacy policy: https://www.bookshelfapp.info/privacy-policy.html * Terms of service: https://www.bookshelfapp.info/terms-of-use.html

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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.

SUGGESTED BUILD STACK
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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.