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
Hockey Time
Track your players' ice time with Hockey Time.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.2
8 ratings · Below Average
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/
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 Hockey Time: 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
Add more real-time statistics and analytics.
Assumption to check: Limited features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more dynamic and visually appealing design.
Assumption to check: User interface is not very engaging
Validate with people who use this workflow before building.
Hypothesis 3
Ensure timely updates and notifications for real-time game changes.
Assumption to check: Inconsistent updates for live scores
Validate with people who use this workflow before building.
Hypothesis 4
Clarify subscription benefits and provide a clearer paywall experience.
Assumption to check: Subscription model can be confusing
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
Track your players' ice time with Hockey Time. Get the most of your players by maximizing effective athletic conditioning and collecting performance stats. - Want to know who stays out on the ice the longest? - Want to know who listens and sticks to your shift plan? - Want to evenly distribute ice time amongst your players? - TOI is the most important stat you can use to get maximum performance from your players. - To be the best coach, use the best coaching tools. - Great for in-game time tracking as well as during hockey drills and practice Hockey Time Features - Track shifts and ice time for each of your players - Track goals, assists, points and plus/minus - Chart time on ice over time to uncover trends - Voice recognition, keep you eyes on the game - Drag and drop players between lines and positions - Tag shifts as even strength (ES), power play (PP) or shorthanded (PK) - View and save shift statistics for completed and in-progress games - Export to .csv and email ice time statistics - Pause and Resume all players (or lines) when the whistle blows - Re-order and edit players and line assignments - Available in English and French We LOVE hockey! You'll love Hockey Time! Send us your comments and suggestions and please rate us!
Written user reviews are not shown here. Check current App Store reviews >
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 Navigation
Axios
Zustand
Expo
TypeScript
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.
