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
My Lunar New Year - Countdown
Personalize your desktop this Lunar New Year with a festive decoration on your home screen
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
2 ratings · Below Average
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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What's included15 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 My Lunar New Year - Countdown: map the core Entertainment 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
Include more events and information about cultural significance.
Assumption to check: Limited content on Lunar New Year celebrations
Validate with people who use this workflow before building.
Hypothesis 2
Add customization options for countdown themes and notifications.
Assumption to check: Basic countdown functionality
Validate with people who use this workflow before building.
Hypothesis 3
Implement social sharing features to encourage sharing with friends.
Assumption to check: User engagement is low
Validate with people who use this workflow before building.
Hypothesis 4
Optimize app performance for a smoother experience.
Assumption to check: Inconsistent performance on older 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
Personalize your desktop this Lunar New Year with a festive decoration on your home screen. You can choose from an animated lantern, a kumquat tree, or a lion to add distinctive holiday cheer. When you install the app for the first time, you will see an animated red Chinese lantern on your desktop, with a flickering flame that creates a vivid effect. You can also add the decoration as a widget on your screen, choosing from three sizes: small, medium, or large. This is the perfect entertainment app to celebrate and enjoy the Lunar New Year. So what are you waiting for? Download it now! Lunar New Year does not fall on the same day each year. This application helps you count down the days until Lunar New Year by converting the date from the traditional Chinese lunar calendar to the Gregorian calendar. You can customize the display with one of the following symbols: + Lantern – Hanging a red lantern is believed to drive away bad luck. + Kumquat Tree (Citrus japonica) – Symbolizes wishes for wealth and good fortune. + Lion – Represents strength, stability, and superiority. A red lion symbolizes good luck, while a yellow lion symbolizes prosperity. What is Lunar New Year? Lunar New Year, also known as Chinese New Year or the Spring Festival, is a celebration that marks the beginning of a new year on the traditional lunisolar Chinese calendar. Why is Lunar New Year celebrated? It is celebrated to mark the beginning of the lunar calendar year. The unique features of this high-quality app: ◆ Change the attribute to a lantern, kumquat tree, or lion in the app and widget ◆ Option to disable the animation effects ◆ Option to change the widget background to solid, gradient, image, or transparent ◆ Option to show you the days left until Lunar New Year day ◆ Option to show the current and next zodiac animal sign ◆ Add widgets on your Home Screen and Lock Screen The following high-quality widgets are available in this widget bundle: ◆ Countdown in days when it is Lunar New Year (in small, medium, and large sizes) ◆ Detailed Lunar New Year countdown with the Gregorian calendar date (in small, medium, and large sizes) ◆ Zodiac Animal to see the previous, current, and next year animal sign (in medium size, and extra-large sizes)
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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
React Navigation
Axios
React Native Reanimated
Shadcn/ui
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.
