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
Novelsago
Our app is a professional online novel reading platform
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
629 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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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Novelsago: 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
Curate exclusive partnerships with authors and publishers.
Assumption to check: Limited novel selection compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the purchase process with clearer options and descriptions.
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 3
Introduce reading groups and sharing features to engage users.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Implement offline access for downloaded novels.
Assumption to check: No offline reading option
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
Our app is a professional online novel reading platform. The platform gathers all kinds of excellent novels, covering romance, urban, werewolf, metaphysical and other genres, each novel has its own unique charm, providing users with the ultimate reading experience. Features: 1. Romance: a collection of modern romance novels, ancient romance novels and crossover novels, the well-designed romantic stories can bring users beautiful love fantasies. 2. Urban novels: tells the struggle stories of urban employees, involving workplace, emotions, family and other aspects, reflecting the social values of urban people. 3. Werewolf novels: contain the most primitive impulses and instincts of werewolves, explore the bright side and dark side of human nature, and give readers psychological stimulation and satisfaction. 4. Fantasy novels: build novel worldview and magic system, outline human nature through bizarre fantasy sentences, bring users endless fantasy fun. 【Membership Description of Auto Subscription Service】 1. Service Name：NovelSago VIPs 2. Subscription Period：1 week/1 month 3. Subscription Price：$5.99（1 week）/$19.99（1 month） 4. Subscription Benefits: You can earn a certain number of coins per cycle and receive a certain number of bonuses per day (see APP VIPs page). 5. Buying a monthly subscription service will automatically debit your iTunes account and extend the service period of one month 24 hours before the monthly service expires. 6. If you want to unsubscribe, please open the iOS "Settings" --> enter "iTunes Store and App Store" --> click "Apple ID", select "View Apple ID", go to the "Account Settings" page, click "Subscribe" ", choose Novelsago Bundle to unsubscribe. If you do not unsubscribe at least 24 hours before the end of the subscription period, this subscription will be automatically renewed. 7. Service Agreement：https://www.blingnews.cc/article/privacy?lang=en 8. Privacy Agreement：https://www.blingnews.cc/article/agreement?lang=en 9. Member subscription service terms：https://www.blingnews.cc/vips-terms-of-service.html 【How To Contact Us】 [email protected]
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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
React Native
Expo
Supabase
Zustand
React Navigation
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.
