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
MASN
MASN is the official regional sports network for the Baltimore Orioles, delivering live games, original programming, and on-demand content to fans across the Mid-Atlantic region
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 2.1
14 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/
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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 MASN: 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
Implement thorough testing and quality assurance processes.
Assumption to check: Poor user ratings due to bugs and crashes.
Validate with people who use this workflow before building.
Hypothesis 2
Include more live updates, stats, and team information.
Assumption to check: Limited content and features compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the UI and enhance navigation flow.
Assumption to check: Difficult navigation and cluttered interface.
Validate with people who use this workflow before building.
Hypothesis 4
Add chat and discussion boards for fan interactions.
Assumption to check: Lack of community engagement features.
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
MASN is the official regional sports network for the Baltimore Orioles, delivering live games, original programming, and on-demand content to fans across the Mid-Atlantic region. The network is available across a seven-state territory—from Harrisburg, Pennsylvania, to Charlotte, North Carolina—on multiple cable and fiber-optic providers, and is also televised nationally via satellite provider Direct TV. Since launching a full-time 24/7 schedule in July 2006, MASN has televised hundreds of professional and NCAA Division I collegiate events each year. MASN’s Emmy Award–winning Orioles coverage provides extensive access to fans throughout the region. The network has consistently enhanced the viewing experience through advanced in-game production features, including super slow-motion cameras and pitch-tracking technology. With a 24/7 live channel, intuitive navigation, and secure TV-provider authentication, the MASN app keeps you connected to Orioles baseball and regional sports programming anytime, anywhere. MASN believes every fan in the region should be able to watch Orioles baseball. To support this, the network offers fair and reasonable carriage terms to cable and satellite distributors throughout its television territory. MASN is currently available on providers including Armstrong, Bay Country, Breezeline, Comcast Xfinity, Cox, Direct TV, Easton Velocity, Lumos TV, Mediacom, Scout, and Verizon Fios. Live Sports Coverage 1. Live Baltimore Orioles games all season long, in HD. Includes O’s Xtra pre- and post-game coverage from Oriole Park at Camden Yards. 2. Orioles Classics and Orioles Minor League Affiliate games. 3. All other MASN programming such as live college football and basketball, boxing, MMA, horseracing, and more. App Features 1. 24/7 live MASN channel. 2. Video on Demand – postgame clips and featured programming. 3. Channel guide for upcoming content. 4. Watch on mobile and supported TV platforms. 5. Secure TV provider authentication. Privacy Policy: https://www.masnsports.com/privacy-policy Terms of Use: https://www.masnsports.com/terms-of-use-agreement
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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
Zustand
React Navigation
React Native Reanimated
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.
