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.
App Overview
LeReader- Navigate New Tales
Hello! For every reader, LeReader is an awesome novel reading app! LeReader is a partner of Letterlux
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
558 ratings · Top 30%
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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Build Kit
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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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for LeReader- Navigate New Tales: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Hello! For every reader, LeReader is an awesome novel reading app! LeReader is a partner of Letterlux. It has the the best authors and classic books from all over the world, with a wide range of novels and a comfortable reading experience for you to enjoy anytime, anywhere. --WHY LeReader?-- -Newcomer's Gift Package Charge up and get a discount, but the quality of the novels will not be discounted! -Read anytime, anywhere On the bus, in bed - whenever you want! The LeReader app puts tens of thousands of books at your fingertips. -Unlimited free books Read popular novels for free; all the novels you want are here! -Personalized Reading Personalize your reading with night mode, page flip effect, reading background, font size, screen brightness and more to have a comfortable reading experience! -Daily fast update The fastest on the net, full novels updated in real time -Personalized recommendations, easy to find books Intelligent novel search, exclusive popular novel recommendations, know what you love! Serialized novels/finished novels list, popular novels list, various lists to catch up with the book easier! [subscription agreement] 1. During the valid subscription period, you can receive complimentary vouchers when you check in. (If you do not check in, you will not receive any complimentary vouchers). 2. The one-time vouchers have a validity period of 15 days, while the vouchers received from check-ins have a validity period of 3 days. 3. Renewal: Your App Store account will be charged within 24 hours before the subscription expires. After a successful charge, the subscription period will be extended by one cycle. 4. Canceling Renewal: To cancel the renewal, please manually disable the auto-renewal function in the "Subscriptions"-"Manage" section of App Store before 24 hours prior to the end of the current subscription period. If canceled within the last 24 hours, a subscription fee will be charged. User Agreement：https://api.kwmobi.com/user_agreement Privacy Policy：https://api.kwmobi.com/privacy_policy --VARIOUS BOOK GENRES-- -Popular Romance -Top Werewolf -Fantasy -Latest Billionaire -Young Adult -&More --FOLLOW US-- Facebook→https://www.facebook.com/profile.php?id=61550062831199 Customer Service Email→[email protected]
Written user reviews are not shown here. Check current App Store reviews >
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
Integrate social sharing options and discussion forums
Assumption to check: Limited social features for sharing and discussing books
Validate with people who use this workflow before building.
Hypothesis 2
Implement personalized recommendations and user reviews
Assumption to check: Difficulties in finding new books to read
Validate with people who use this workflow before building.
Hypothesis 3
Add functionality for offline access to downloaded books
Assumption to check: No offline reading mode
Validate with people who use this workflow before building.
Hypothesis 4
Simplify subscription options and provide clearer status updates
Assumption to check: Complicated subscription management
Validate with people who use this workflow before building.
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
React Navigation
Expo
Supabase
Axios
React Native Gesture Handler
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.
