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
Snapback Sports Trivia
SNAPBACK SPORTS TRIVIA — DAILY SPORTS TRIVIA FOR REAL FANS
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
767 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 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 Snapback Sports Trivia: 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
Regularly update trivia questions with new content.
Assumption to check: Lack of question variety over time
Validate with people who use this workflow before building.
Hypothesis 2
Add social features like user profiles or friend challenges.
Assumption to check: Limited user engagement features
Validate with people who use this workflow before building.
Hypothesis 3
Clearer communication of premium benefits and trial options.
Assumption to check: Monetization confusion
Validate with people who use this workflow before building.
Hypothesis 4
Optimize backend/API for faster question retrieval.
Assumption to check: Performance issues with loading questions
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
SNAPBACK SPORTS TRIVIA — DAILY SPORTS TRIVIA FOR REAL FANS Think you know ball? Prove it. Snapback Sports Trivia is a picture-based daily trivia game built for sports diehards. Identify players, logos, and iconic moments across NFL, NBA, MLB, NHL, and more — then race up the leaderboard before the next drop hits at noon ET. With over 300 games in the archive and a new one every single day, there's always something to prove. BALL KNOWLEDGE Show your friends you know ball with your Ball Knowledge score. Get to 99 and gain the God Mode badge. Compete on leaderboards. DAILY TRIVIA A new picture-based sports trivia game drops every day at noon ET Name the player, identify the logo, or place the moment Leaderboards rank by correct answers and total time — speed matters Miss a day? Dig into 300+ archived games anytime JACKPOT MODE Three wheels spin to land on a random team, position, and year across basketball, baseball, hockey, and football Name a real player who fits all three and keep your streak alive One wrong answer ends it — unless a friend steps in to save you MULTIPLAYER Challenge your friends to the same game Same questions, same clock — pure head-to-head competition MORE FEATURES Daily streak tracker: build your streak by playing every day Streak Saver: designate a friend to rescue your Jackpot streak Challenge System: think your answer should count? Submit it for review Fan-submitted games: build your own on desktop for a chance to be featured as the daily Snapback Sports Trivia is free to play with no in-app purchases. New game every day at noon ET.
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
Zustand
axios
react-query
@react-navigation/native
BUILD KIT DIFFICULTY
Advanced
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.
