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
Match3D: Carnival Crew
Step right up and test your brain in the most colorful 3D puzzle adventure!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 1.8
60 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 Match3D: Carnival Crew: map the core Games 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 dynamic level generation to keep users engaged.
Assumption to check: Limited variety of game levels leads to boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Offer more rewards for completing levels instead of purchases.
Assumption to check: In-app purchases can disrupt gameplay.
Validate with people who use this workflow before building.
Hypothesis 3
Implement rewarded ads instead of mandatory ad displays.
Assumption to check: Ads can be intrusive and annoying.
Validate with people who use this workflow before building.
Hypothesis 4
Add friend invites and competitive challenges.
Assumption to check: Lack of social features for competition.
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
Step right up and test your brain in the most colorful 3D puzzle adventure! Join the Carnival Crew and dive into a vibrant world packed with fun, challenge, and satisfying matching gameplay. Can you spot and match all the hidden objects before time runs out? Test Your Brain Sharpen your focus as you search, sort, and match tons of 3D objects in dynamic piles. It’s easy to learn—but tricky to master! How to Play • Tap to match 2 identical 3D objects • Clear the board before the timer runs out • Unlock new levels and challenges as you progress • Use powerful boosters to help when things get tough Features • Hundreds of fun levels with increasing difficulty • Bright, colorful carnival-themed visuals • Satisfying and relaxing match mechanics • Unique objects to discover in every level • Handy boosters & power-ups to keep you moving Why You’ll Love It Whether you’re looking to relax or challenge your mind, Match3D: Carnival Crew delivers a perfect mix of fun and focus. Every level feels fresh, rewarding, and just a little bit addictive. Ready to join the crew? Download now and start matching your way through the carnival!
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
react-navigation
@react-native-async-storage/async-storage
expo-three
react-native-reanimated
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.
