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
Fireplace ©
Relax your eyes with this fantastic 4K Fireplace!
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
2 ratings · Top 15%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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 Fireplace ©: 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
Offer a wider variety of fireplace styles and themes.
Assumption to check: Limited selection of fireplace videos.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more streamlined settings menu.
Assumption to check: Navigation can be confusing with multiple settings.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer prompts and descriptions for premium content.
Assumption to check: In-app purchase process is unclear.
Validate with people who use this workflow before building.
Hypothesis 4
Optimize video streaming for smoother playback.
Assumption to check: Performance issues with video playback 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
Relax your eyes with this fantastic 4K Fireplace! Want a fireplace in your home? Set it as your wallpaper on your iPhone, iPad, or Apple TV. With 4K Fireplace, enjoy stunning 4K images of a magnificent fireplace, alone or with company. Playback • 4K and HD videos • Endless loop playback • Shuffle mode • Background playback while using other apps • Sleep timer: the video automatically stops when you fall asleep Large Screen • Compatible with Apple TV via AirPlay • Compatible with Chromecast to view the aquarium on your HDTV Customization • 5 visual effects for your favorite fireplaces: snow, powder snow, rain, sparkles, and confetti • 4 display layouts: list, grid, single circle, or double circle • Bookmark your favorite videos for quick access • Dark mode support Content • Over 30 different fireplaces • New content added regularly Privacy Policy: http://kissappsl.com/pages/privacy-policy/ Terms of Use (EULA): http://kissappsl.com/terms-of-use/
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
expo-av
redux
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.
