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
ColorSlurp
ColorSlurp is the ultimate color productivity booster for designers and developers.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
92 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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What's included18 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 ColorSlurp: map the core Developer Tools 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 detection.
Assumption to check: Limited color extraction accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Add edit functionality for user convenience.
Assumption to check: No ability to edit palettes once created
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer explanations and value for premium features.
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a community gallery for users to share and discover palettes.
Assumption to check: Lack of community sharing 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
ColorSlurp is the ultimate color productivity booster for designers and developers. • Pick colors using your camera or from any photo! • Create color palettes automatically. • Create and edit colors using an assortment of color selection tools. • Copy colors to a variety of color formats. • Name and organize your colors into palettes, and sync them with iCloud across Mac and iOS. • The swatches panel dynamically creates beautiful harmonies based on the color you're editing. • Export colors to different languages and files: PDF, iPhone wallpaper, ASE, CSS, Sass, Swift, CLR, HTML, JSON, and more! • Looks amazing in dark mode! • Authentic slurp sound when picking colors! # Magnifier The magnifier lets you pick colors using your camera or from any photo. Then copy the color to any format with one click. You can even automatically generate color palettes using different algorithms. # Edit Colors ColorSlurp's powerful color editing tools let you dial in the perfect color. # Formats One-click copies a color to any format for any language. # Palettes Name and organize your colors into palettes. # Sync with iCloud, and Import/Export Sync your palettes between all your devices with iCloud. Create the perfect palette on your phone, then sync it to ColorSlurp on Mac. Export palettes to different languages—CSS, Sass, Swift, HTML, JSON, and more! # Swatches & Color Harmonies Quickly grab a pre-defined color from the swatches panel, or find color harmonies based on the color you're editing. You can even remove opacity from a color while keeping the shade against its background. # ColorSlurp PRO Go PRO and get these awesome features! • Save and copy picked colors from your photos or camera. • Palette Export. • Create unlimited palettes. • Swatches and Color Harmonies. • Support the developer and future features of the app! Terms of Use: https://colorslurp.com/app-terms Privacy Policy: https://colorslurp.com/app-privacy Email: [email protected] Twitter: @IdeaPunchLLC
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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
react-navigation
expo-image-picker
react-native-share
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.
