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
Color Block Run - Puzzle Game
Escape the everyday with Color Block Run: Addictive, calming puzzles that challenge your brain and soothe your soul.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
2,321 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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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 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 Color Block Run - Puzzle Game: 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
Introduce varied level designs and challenges to keep users engaged.
Assumption to check: Repetitive gameplay can lead to boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Provide more free content or a fairer pricing model.
Assumption to check: In-app purchases may frustrate users.
Validate with people who use this workflow before building.
Hypothesis 3
Implement an ad-free subscription option.
Assumption to check: Ads can interrupt gameplay.
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing and multiplayer options for competitive play.
Assumption to check: Limited social 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
Escape the everyday with Color Block Run: Addictive, calming puzzles that challenge your brain and soothe your soul. Experience the satisfying crunch of logic as you slide blocks, clear space, and outsmart clever obstacles. Each solved puzzle delivers a rewarding mental boost! Key Features: Endless Evolving Challenges: Hundreds of levels from relaxing to intensely complex. Regular free updates! Soothing Visual Escape: Clean, minimalist design with beautiful, calming color palettes. A true visual retreat. Unlock the next level, each with a unique puzzle. Pure Spatial Logic: Exercise your brain without pressure. No timers, just thoughtful problem-solving at your pace. A brand new building experience: Advance the story and build your own home, offering a novel experience not found in classic puzzle games. In Color Block Run, you will follow Paul Bunyan to gain more construction experience by experiencing the wooden 3D block puzzle game. Exciting Tournaments: Collaborate with others to conquer new worlds! Whether you're a strategic mastermind or a creative puzzle lover, Color Block Run delivers endless brain-teasing fun! Dive into a world where every level sharpens your skills, sparks your imagination, and pushes your problem-solving to the limit. Ready for the challenge? Download now and start your addictive block-matching adventure today!
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
Zustand
React Navigation
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.
