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
NovelOasis-Read Without Limits
Over here! Novel fans.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
1,495 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 NovelOasis-Read Without Limits: 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
Enhance search with filters and recommendations.
Assumption to check: Limited search functionality leading to poor discoverability.
Validate with people who use this workflow before building.
Hypothesis 2
Implement social sharing and discussion forums.
Assumption to check: Lack of social features for sharing books or reviews.
Validate with people who use this workflow before building.
Hypothesis 3
Clarify subscription tiers and benefits through better UI.
Assumption to check: Subscription model can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Ensure syncing of reading progress across devices.
Assumption to check: Inconsistent reading experience across devices.
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
Over here! Novel fans. Welcome to NovelOasis! A platform full of fantistic novels. NovelOasis is a newly launched novel APP with a huge number of novels. It is a partner of Letterlux. With it, you can build a library of your own in a small phone! 【Why NovelOasis?】 Countless amazing stories, plus daily recommendations customized for you! Hot books updated daily! New books updated weekly! Partner of Letterlux! Personal library auto sync on every device! Perfect night mode to give you better reading experience during the night! 【Other Features】 Auto-Read: Auto-Read liberates your hands Different fonts: many fonts for you to choose Special events: different events every month Fast-responding CS team: any of your questions will get answered within 24h 【Subscription Agreement】 Payment: The purchase will be charged to your apple account. Renewal: Your subscription will renew automatically.Subscription are automatically charged each billing period whether monthly oranother period, and you may be charged no more than 24 hours before the beginning of each billing period until you cancel your subscription. Cancellation: You may cancel a subscription at any time more than 24 hours before your renewal date. Manage: You can view, change, or cancel your subscription. 【User Agreement】 https://api.novel-oasis.com/user_agreement 【Privacy Policy】 https://api.novel-oasis.com/privacy_policy
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
React Navigation
Zustand
React Native Reanimated
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.
