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
IceStats
IceStats is a very simple, user-friendly app designed for ice hockey enthusiasts, players, coaches, and stats trackers to effortlessly manage and analyze player performance stats with ease
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
2 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/
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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 IceStats: 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
Expand the range of stats tracked and provide customization.
Assumption to check: Limited player statistics and tracking options
Validate with people who use this workflow before building.
Hypothesis 2
Add functionality for users to share stats with friends.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Implement a more organized layout and design.
Assumption to check: User interface may feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Provide clearer explanations of subscription benefits.
Assumption to check: Subscription model may confuse users
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
IceStats is a very simple, user-friendly app designed for ice hockey enthusiasts, players, coaches, and stats trackers to effortlessly manage and analyze player performance stats with ease. Whether you're a volunteer taking stats during a game, recreational league player logging your own stats or a parent monitoring your players progress, IceStats simplifies tracking key metrics for both skaters and goalies across games and seasons. IceStats is perfect for amateur leagues, youth teams, or personal tracking—helping you spot trends, celebrate milestones, and improve performance. Key Features: Player/Goalie Management: Add and edit players with details like name, jersey number, position, team, and season. Organize players into teams for group tracking. Skater Stats Tracking: Record essential metrics per game, including goals, assists, points, blocked shots, plus/minus, hits, shifts, penalty minutes (PIM), power play goals (PPG), shorthanded goals (SHG), overtime goals (OTG), shots on goal, shooting percentage, faceoffs won/lost/percentage, and game winning goals (GWG). Goalie Stats Tracking: Specialized tracking for goaltenders, including games played/started, wins/losses/ties/OT losses, shots against, goals against, goals against average (GAA), saves, save percentage, shutouts, time on ice (TOI), and goals scored. Team Stats Entry: Input stats for entire teams in one session, with support for multiple skaters and goalies per game. Great for stat tracking during live game. Interactive Summaries: View sortable tables of individual player stats or team overviews. Swipe to edit or delete entries, and calculate totals like cumulative points, averages, and percentages automatically. Core Data Persistence: All data is securely stored on your device using Core Data—no internet required. Easily manage seasons and export or review historical performance. User-Friendly Interface: Intuitive forms for quick entry, with auto-calculations for percentages and averages. Supports landscape mode for better viewing on iPads and accessibility features for all users. IceStats turns your iPhone or iPad into a powerful hockey analytics tool. No subscriptions or ads—just pure stats tracking. Download now and elevate your game!
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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
Supabase
react-navigation
Zustand
react-native-paper
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.
