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
Onlit: Read Good Novels & Book
Onlit aims to provide an excellent reading experience for you readers, which will meet the needs of all of you
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
331 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 Onlit: Read Good Novels & Book: 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
Provide more free content and transparent pricing.
Assumption to check: Limited free content and aggressive upselling of in-app purchases
Validate with people who use this workflow before building.
Hypothesis 2
Improve onboarding experience with guided tutorials.
Assumption to check: Difficult navigation for first-time users
Validate with people who use this workflow before building.
Hypothesis 3
Optimize data fetching and caching.
Assumption to check: Slow loading times for book details
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social features to enhance user engagement.
Assumption to check: Lack of community features like reviews or discussions
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
Onlit aims to provide an excellent reading experience for you readers, which will meet the needs of all of you. In the Onlit, there are numerous novels ready for you with good quality, completed genres. Onlit is fully functional, creating personalized recommendations for users. According to your preferences, you can customize the display of the interface. Perfect reading is ahead of you. [Key Features] * Many Many Books Provides both paid and free ebooks including romance, werewolf/vampire, billionaire, marriage, action, adventure, fantasy, young adult fiction, fanfiction, LGBT, classic, xuanhuan, wuxia novel & more original work. New stories updated daily! * Free Offer & Sale Free books and special offers; Free trial reading chapters and episodes; Free vouchers for you to buy paid ebooks and chapters. * Customizable Reading Features Build up your own bookshelf and enrich your collections. Real paper book simulation, text size adjustment, night theme and more for you to find the best reading style. * Read Books Offline Save and preload your favourite stories and take them with you wherever you go, even when you're offline. Import books from your phone and read EPUB files, text documents, UMD files and other 30 file formats of e-books * Audiobooks Listen to all your favourite ebooks with our easy to use audiobook player. About Auto-Renewable Subscriptions - Auto-renewable subscriptions in the app include Check-in Coins Packs. - Daily Coins Bundle: $5, $10 and $15 - Payment: The purchase will be charged to your iTunes account. - Renewal: When you subscribe to check-in coins pack, your subscription will renew automatically. You'll be charged at the start of each billing cycle until you cancel your subscription. Subscriptions are automatically charged each billing period, whether monthly or another period, and you may be charged no more than 24 hours before the beginning of each billing period. - Cancellation: You may cancel a subscription at any time more than 24 hours before your renewal date. - Privacy Policy: https://fract.cdreader.com/app/agreement/privacy.html?client_proid=168&mt=1 -Subscription Terms and Conditions: https://fract.cdreader.com/app/CheckinCard/agreement.html?client_proid=168&mt=1 - Terms of Use: https://fract.cdreader.com/app/termsofservice.html?client_proid=168&mt=1
Written user reviews are not shown here. Check current App Store reviews >
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
Expert
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.
