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
Russ Bray Darts Scorer
***** 5 star award in Apps Magazine
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
52 ratings · Top 5%
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 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.
JavaScript is required to complete mailbox verification.
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 Russ Bray Darts Scorer: map the core Sports workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 more diverse game types and customizable scoring options.
Assumption to check: Limited options for game types and scoring modes
Validate with people who use this workflow before building.
Hypothesis 2
Implement features for easier player management and team functionalities.
Assumption to check: Difficulty in managing multiple players in larger games
Validate with people who use this workflow before building.
Hypothesis 3
Create a more organized and visually appealing layout for score tracking.
Assumption to check: UI can feel cluttered with many scores
Validate with people who use this workflow before building.
Hypothesis 4
Introduce sharing capabilities for game results on social media.
Assumption to check: Lack of social sharing features
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
***** 5 star award in Apps Magazine. "Russ Bray will speak your name and work out the scores for you, and there are so many features here we cannot possibly cover them all. It is a brilliant and ambitious darts scoring solution in app form". Welcome to Russ Bray Darts Scorer, the ultimate darts scoring app. Russ Bray referees at all major Sky TV Professional Darts Corporation (PDC) tournaments including the World Championships. He is widely considered to be the best darts referee in the world. In the app Russ referees your darts match in full including speaking your name, throws, total left, and shot-outs with his silky vocal tones exactly as he does on TV. Game, shot and the match to Russ Bray Darts Scorer! VERSUS (2 PLAYER): You and a friend battle it out on the oche. PLAY COMPUTER): Play X01 and Cricket against the computer. For more features including Online Play, Voice Scoring, Tournaments, Career Mode and Practice Games check out Russ Bray Darts Scorer Pro. HEADLINE FEATURES: - World professional referee Russ Bray calling all the shots just like as he does on TV. - Personalised audio, hear Russ speak YOUR name (over 3000 names including nicknames). If your name is not available you can request Russ to record it for you personally. - Set your own custom start number between 101 and 9999. - Cricket scoring. - Save matches and resume them at any time. - Match history and detailed stats for the current match and all past matches including average, first 9 average, best leg (darts thrown), highest checkout, highest throw, doubles hit, legs against throw and score counts (60's, 100's, 140's and 180's counts). - Individual throws are all recorded. - Head to Head match stats. - Score the total for the each throw or dart separately. - Option to automatically switch entry mode to single dart when on a finish. - ProScore option for manually tracking of missed doubles (MD), and darts thrown when finishing or busting a score. - Option to have an open ended game (set winning target to 0). - Play with leg or set scoring (3 or 5 leg sets). - Averages and checkouts can be displayed when a finish is available. - Bull up to decide starting player. - Tie breaks to win by two clear legs. - Play the computer at ten skill levels. - Play with handicaps. - Real to life TrueThrow mechanics with the computer throwing intelligently depending on the match situation. - Create your own computer players at any level (mimic the pro's). - Undo any score including after the leg or match has finished. Note: We want you to enjoy the app and get the most from it. If you have any issues or comments use the support link from within the app or via iTunes and we will contact you as soon as possible.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
TypeScript
Zustand
React Navigation
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.
