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 Sense for Safari
Color Sense for Safari is the best color productivity extension for designers and developers who use Safari
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
2 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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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 Sense for Safari: 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
Implement advanced algorithms for better color extraction.
Assumption to check: Difficulty in color accuracy from images
Validate with people who use this workflow before building.
Hypothesis 2
Add options for sharing palettes and collaboration.
Assumption to check: Limited palette management features
Validate with people who use this workflow before building.
Hypothesis 3
Include a dark mode option for user preference.
Assumption to check: No dark mode support
Validate with people who use this workflow before building.
Hypothesis 4
Clarify premium features and make them more accessible.
Assumption to check: In-app purchase confusion
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
Color Sense for Safari is the best color productivity extension for designers and developers who use Safari. Wondering about that perfect shade of blue on a webpage? Or the exact tone of that vibrant yellow background? With our extension, you can effortlessly discern the color of any pixel, inspect CSS colors of web elements, or unveil entire website palettes with a single click. Key Features: Eyedropper: Capture any pixel color from your current page with our ultra-accurate magnifier. Check Websites Palettes: With on click you can instantly discover full site palettes. Create Your Own Palettes: Select colors with our different tools and create personalized color palettes. Web Color Inspector: Effortlessly identify and save the color of any element on a webpage. With just a simple click, reveal the exact hex code color. Detailed Color Analysis: Copy colors to a variety of color formats like HEX, RGB, and HSL. Copy & Design: Seamlessly copy and utilize color codes in graphic tools like Figma, Photoshop and many more. Color picker tool: Utilize our color picker tool to customize colors to your liking. Choose from various hues and adjust opacities. Add color palettes to favorites: Save your favorite color palettes to favorites and build your own collection. Light & Dark mode: Choose between light and dark mode themes. Cross-Device Compatibility: the extension is available on macOS, iOS, and iPadOS. Localization: The extension is fully localized in over 30 languages. User-friendly Interface - Sleek and intuitive design for pros and novices alike. Efficient & Lightweight - No lag, no bloat; just pure color magic! From designers seeking inspiration to developers aiming for pixel-perfect replication, our extension is a must-have for all digital creators. Delve into the ocean of colors on the web and streamline your creative process with Color Sense for Safari.
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
@react-navigation/native
react-native-color-picker
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.
