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
Assistant Coach Volleyball
Assistant Coach Volleyball is your all-in-one toolkit for managing volleyball teams, players, games, stats, practices, exercises, and coaching staff
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
58 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 included17 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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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 Assistant Coach Volleyball: 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 create and share custom drills.
Assumption to check: Limited drill variety and customization options
Validate with people who use this workflow before building.
Hypothesis 2
Provide clear explanations of premium content and trials.
Assumption to check: In-app purchase confusion among users
Validate with people who use this workflow before building.
Hypothesis 3
Implement a more comprehensive performance tracking feature.
Assumption to check: Difficulty in tracking player stats over time
Validate with people who use this workflow before building.
Hypothesis 4
Introduce social features for coaches to connect and share insights.
Assumption to check: Lack of community features for coaches
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
Assistant Coach Volleyball is your all-in-one toolkit for managing volleyball teams, players, games, stats, practices, exercises, and coaching staff. From planning practices to tracking game performance, Assistant Coach Volleyball empowers you to stay organized and elevate your coaching game. TEAM MANAGEMENT MADE SIMPLE • Organize multiple teams by season with complete stats at your fingertips. • Add team photos and instantly access seasonal performance data. • Effortlessly export team stats to PDF for sharing or printing. • Communicate with your entire roster via group messaging. PRACTICE PLANNING & EXERCISES • Create practice plans with detailed descriptions, dates, and drill breakdowns. • Draw strategies with the interactive clipboard right on your screen. • Track player attendance and performance for every practice. • Record and archive videos of drills for quick reference. • Export practice plans to PDF with one tap. PLAYER PROFILES & PERFORMANCE TRACKING • Build complete player profiles: name, number, role, height, weight, contact info, and photos. • Monitor practice attendance, starting lineup appearances, and game stats. • Export player profiles and season stats to PDF for analysis. GAME LOGS & STATISTICS • Log game results, opponents, game types, and notes. • Schedule upcoming games and track performance seamlessly. • Instantly calculate team and individual player stats after each game. • Export game summaries and player stats to PDF. EXERCISE ARCHIVE • Create a library of your favorite drills and exercises. • Reuse archived exercises for faster practice planning. SEAMLESS SYNC & SHARING • Backup your data and sync across all devices with your Assistant Coach account. • Share practice plans and drills with colleagues in real-time. Join thousands of coaches who trust Assistant Coach Volleyball to simplify their workflow and boost team performance. Download now and transform your coaching! CONNECT WITH US • Email: [email protected] • Instagram: https://instagram.com/assistantcoach • YouTube: https://www.youtube.com/AssistantCoachApp Elevate your coaching. Master the game. Download Assistant Coach Volleyball today.
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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
axios
react-navigation
react-native-chart-kit
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.
