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.
Colors sell the sign.
$19.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Color Signs: 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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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
Assumption to check: Limited customization options for text and backgrounds.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user feedback mechanisms.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Not enough templates available.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Colors sell the sign. Color Signs puts 944 time-tested color combinations right in your pocket — plus the tools to mix your own. Every combination is real working knowledge from the brush era: which heading reads on which background, which shade carries it, which border ties it together. Browse them by background color, spin up new ones with the generator, or build your own from scratch. BROWSE 944 PROVEN COMBOS • 50+ background colors, organized by hue family • Every combo shows its heading, shade, sub-heading, body, and border roles with names and hex values • Riffle through variations that share a heading color GENERATE NEW COMBOS • Eight fresh combinations at a time, built from the apps own rules • Swipe through full sign previews, tap chips to compare • Contrast logic keeps every combo readable CUSTOMIZE YOUR BACKGROUND • Start from any color: RGB, CMYK, hex, or sample it from a photo • Heading, shade, sub, body, and border follow with color-theory harmonies • Camera eyedropper matches real-world paint and stock MAKE IT YOURS • Block shade ( even with a gap ), outline, and center-line letter treatments • Rule lines, wavy borders, full frames, magic dots — recolor any of them • One-tap reset back to the default colors SAVE AND SHARE • Bookmark keepers to your Saved Combos • Export any combo to your camera roll as a spec card with every color's name and hex — a mixing reference for the paint desk Made by Tynes Signs, a working sign shop in Coker, Alabama. No accounts, no ads, no nonsense — just the colors.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.