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
Buffalo Sabres
Welcome to the official mobile app of the Buffalo Sabres! Built for the most dedicated and loyal fans in the NHL
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
104 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 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.
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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 Buffalo Sabres: 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
Include more interactive features like polls or quizzes.
Assumption to check: Limited content variety for casual fans
Validate with people who use this workflow before building.
Hypothesis 2
Implement push notifications for real-time updates.
Assumption to check: Inconsistent update frequency
Validate with people who use this workflow before building.
Hypothesis 3
Design a cleaner, more intuitive navigation experience.
Assumption to check: Navigation can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Enhance social sharing features for better fan engagement.
Assumption to check: Limited social media integration
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
Welcome to the official mobile app of the Buffalo Sabres! Built for the most dedicated and loyal fans in the NHL. Stay locked in with exclusive team content all year long and make game day go smoothly with mobile ticketing. Plus, follow breaking news, real-time statistics and shot charts, streaming live video, exclusive feature stories, and more! Features include: News: Real-time breaking news, previews of upcoming matchups, postgame recaps and player features Video: Live streaming video, feature stories, press conferences, coach and player interviews, and more Arena: Manage your mobile tickets, see upcoming concerts and events, interactive maps, and more. Photos: Stunning HQ photo galleries Stats: Real-time statistics and scores from the official NHL stats engine, head-to-head matchup insights, player stats, score charts, box scores and league-wide stats Standings: See up-to-date team and league standings Contests and More: Enter to win app exclusive contests, games, and more Schedule: Schedule of upcoming games, box scores from previous games, ticket purchases for future games, or add the games to your calendar For more Sabres news and info, visit sabres.com For support: Tweet @yinzcam or email [email protected]
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 Native
Expo
Supabase
Axios
React Navigation
React Query
BUILD KIT DIFFICULTY
Expert
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.
