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
ColorAssist
Use the camera to capture RGB values in real-time and convert them to the closest color name from a dictionary of nearly 900 colors
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
6 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 included15 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 ColorAssist: map the core Utilities workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Use the camera to capture RGB values in real-time and convert them to the closest color name from a dictionary of nearly 900 colors. Also available: RYB, HSL and CMYK values, HTML color code, closest HTML color name, and simple color name. Touch a color square to view the information for that sample at any time. "Auto" uses the camera's auto focus and auto contrast adjustment feature. "Lock" fixes or locks the current contrast setting. And "Target" allows you to touch any area of the screen to select that spot as the source for the color sample (in cases where moving the device would disrupt the focus/contrast, or where the device is mounted in a fixed position). Manage named color sample sets on the Edit screen. After organizing a sample set, email the color samples with color chips, with color chips and a selected photo, or as text only. On the Options screen, select which color conversions to display, and set the spacial and temporal apertures from 1x1 to 50x50 pixels, and 1 to 30 frames. Touch the "Target" selector then touch the screen to move the sample location without moving the device. App Store screen shots simulated Photo copyright E. Huybrechts https://www.flickr.com/photos/ensh/4769294947/in/album-72157607460583769/ Modified and used under license: Creative Commons Attribution 2.0 Generic https://creativecommons.org/licenses/by/2.0/
Written user reviews are not shown here. Check current App Store reviews >
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 detection accuracy in varying lighting conditions.
Validate with people who use this workflow before building.
Hypothesis 2
Provide user preferences for color display options.
Assumption to check: Lack of customization options for color format display.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to save and manage their color detection history.
Assumption to check: No history management for color detections.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate sharing features for easy color information distribution.
Assumption to check: No sharing options for color information.
Validate with people who use this workflow before building.
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
expo-camera
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.
