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
BT Volleyball Scoreboard
One of the most convenient volleyball scoreboard apps on the market with many convenient features
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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.
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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 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 BT Volleyball Scoreboard: 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
Allow users to customize scoring rules and settings.
Assumption to check: Limited customizability in score tracking.
Validate with people who use this workflow before building.
Hypothesis 2
Include features for tracking player statistics and match history.
Assumption to check: Lack of advanced statistics or analytics.
Validate with people who use this workflow before building.
Hypothesis 3
Enable sharing of match results to social media.
Assumption to check: No social sharing options.
Validate with people who use this workflow before building.
Hypothesis 4
Offer a free trial or freemium model to attract more users.
Assumption to check: High upfront cost without trial.
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
One of the most convenient volleyball scoreboard apps on the market with many convenient features. The BT Volleyball Scoreboard app is the next best option to investing in an expensive professional grade scoreboard. BT Volleyball Scoreboard Features: - Clean design, no ads - Intuitive direct tap and swipe controls - Remotely control scoreboard with WiFi or Bluetooth - Convenient timers: pregame timer, in-between set timer, timeout timer - Fully customizable game in the settings For the best experience, use the application on a large tablet, or hook your phone/tablet up to a large display or video projector. You'll feel like you have just bought a professional scoreboard! Video tutorial: https://vimeo.com/1136248415 For a full list of our other tutorials please visit: https://vimeo.com/channels/btstatsco The BT Volleyball Camera app was created by The Basketball Temple Company. After the success of our basketball products, we have expanded into other sports. The Basketball Temple Company focuses on high quality academies, leagues, and technologies that are used to support those academies and leagues. We open our technology to the public so everyone in the sports community can experience the same technologies that we use within our institutions. # Quick Start Documentation: Score Controls: - Tap score to increase quickly - Swipe up/down score to increase/decrease - Hold down on team names to adjust name and color of teams - Select set to adjust previous set scores Timeout Controls: - Tap timeout number to call timeout - Swipe up/down timeouts to adjust numbers - Enable tech timeouts for 8th, 16th points. Fully customizable. Use the Scoreboard as a Remote Controller - Tap on top-left icon to open connect menu - Hit "Refresh" to find devices - Tap on WiFi or Bluetooth icon to connect, green icon indicates connected - If unable to connect or having connection errors try one of the following: 1) please ensure all devices are on the same WiFi network 2) please ensure bluetooth is turned ON on all devices 3) lastly, try to restart the app on all devices Time and Game Settings: - Tap on top-right icon to open settings menu - Edit and save the many settings available
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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
Zustand
@react-native-async-storage/async-storage
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.
