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 Pro X Accurate Picker
The most accurate color picker trusted by design professionals worldwide
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
1 ratings · Top 30%
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 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 Color Pro X Accurate Picker: map the core Graphics & Design 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
Provide a wider range of color palettes and customization options.
Assumption to check: Limited color options compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Implement options to share colors directly to social media or via links.
Assumption to check: Limited sharing functionality
Validate with people who use this workflow before building.
Hypothesis 3
Create an engaging tutorial to guide new users through features.
Assumption to check: Poor onboarding experience
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
The most accurate color picker trusted by design professionals worldwide. Capture perfect colors instantly and get precise 6-digit hex codes - not the broken 5-digit codes other apps generate. FINALLY, A COLOR PICKER THAT WORKS RIGHT - Accurate 6-digit hex codes every time (#FF5733, not #FF573) - Real-time camera color capture with calibration - Works 100% offline - no internet needed - One-time purchase - NO SUBSCRIPTIONS! PROFESSIONAL COLOR TOOLS - Camera Picker: Point and capture any color instantly - Live Preview: See color values update in real-time - Multiple Formats: HEX, RGB, CMYK, HSL, LAB - Color Comparison: Compare colors side-by-side - Smart History: Auto-saves last 100 colors PERFECT FOR - UI/UX Designers - Get exact hex codes for web and app design - Graphic Designers - Match brand colors perfectly - Interior Designers - Capture paint and fabric colors - Painters & Artists - Find digital matches for real pigments - Web Developers - Copy CSS-ready color codes - Photographers - Color grade with precision ADVANCED FEATURES - White Balance Calibration - Ensure color accuracy - Palette Manager - Create and organize color schemes - Export Options - ASE, CSS, JSON, Text formats - Color Wheel - Generate colors manually - Delta E Calculator - Measure color differences - iOS Widget - Quick access to recent colors WHAT MAKES US DIFFERENT Unlike subscription-based apps that charge monthly fees for basic features, Color Pro gives you everything upfront. No hidden costs, no premium tiers, no ads. Just a professional tool that works. While competitors generate incorrect 5-digit hex codes that break your CSS, Color Pro guarantees accurate 6-digit codes that work every time. We built this app because we were tired of fixing broken color codes. EXPORT YOUR COLORS - Adobe Swatch Exchange (.ase) - For Creative Cloud - CSS Variables - Ready-to-use code - JSON Format - For developers - Sketch Palettes - For UI design - Plain Text - Universal sharing TECHNICAL SPECS - Supports sRGB, Adobe RGB, Display P3 color spaces - Works on all iPhones (iOS 16+) - Optimized for iPhone 15 Pro cameras - Full iPad support with enhanced UI - Zero data collection - Your colors stay private Join thousands of professionals who've switched to Color Pro for accurate, reliable color picking. Stop wasting time fixing broken hex codes. Get it right the first time. One purchase. All features. Forever.
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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
Zustand
expo-clipboard
react-navigation
react-native-reanimated
BUILD KIT DIFFICULTY
Starter
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.
