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
Candle Count
Candle Count – The Ultimate Candlepin Bowling Scorekeeper!
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
6 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's included14 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 Candle Count: map the core Sports 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
Introduce more detailed workout tracking features.
Assumption to check: Limited functionality for tracking workouts outside of counts
Validate with people who use this workflow before building.
Hypothesis 2
Add social sharing options for users to share their achievements.
Assumption to check: Lack of social features to share progress
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription options and clarify benefits.
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Create a more streamlined and user-friendly design.
Assumption to check: UI can feel cluttered with too many statistics
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
Candle Count – The Ultimate Candlepin Bowling Scorekeeper! Take your candlepin bowling game to the next level with Candle Count—the ONLY app designed specifically for candlepin bowling enthusiasts. Track scores, compete with friends, and relive your best games, all in a sleek, easy-to-use interface. Whether you’re at your local alley, on a league night, or just having fun with friends, Candle Count makes scoring effortless, accurate, and fun! Features You’ll Love >Smart & Dynamic Scorekeeping Automatic strike/spare detection with proper 10th frame rules. Cumulative scores update in real-time so you always know who’s winning. Handles 1–6 players seamlessly, with dynamic player setup. >Beautiful, Intuitive Interface Landscape mode scorecard for easy viewing. Highlight the current player’s turn automatically. Color-coded scores for quick recognition: blue for running totals, yellow for frame totals. >Easy Pin Input Custom pin pad for fast, accurate rolls. Prevents invalid pin entries—never worry about adding too many pins. Roll buttons & numeric pad make scoring smooth and enjoyable. >Undo & Redo Made a mistake? No problem! Undo or redo rolls at any time—Candle Count tracks everything so you don’t have to. >Final Score & Sharing Final scores sorted by winner with medals. Play Again to reset the game quickly. Home button to add new players, change names, or pick a new alley. View Scorecard to review the full game anytime. Share your victories with friends on social media via high-quality screenshots. >Score History Every game you play is saved automatically. Browse past games, see player performance, and delete old scores if needed. >Alley Support Track which alley you’re playing at with name, logo, and optional Instagram or website info. Display custom messages for your favorite alleys. >Stunning Design Crisp vampire-themed icon and UI for a fun, playful vibe. Smooth, clean visuals make gameplay fun and easy to read. Why Candle Count? Made specifically for candlepin bowling (not regular bowling). No messy manual calculations—just roll, track, and win. Perfect for casual play, league nights, or tournaments.
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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
Zustand
React Navigation
Firebase
TypeScript
BUILD KIT DIFFICULTY
Starter
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.
