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.
The "color wheel", also known as "color circle", is a useful color tool
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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.
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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.
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 KeepColors - Color Palette: map the core Reference 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 sharing options for palettes
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No color blindness modes
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited palette color options
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.
The "color wheel", also known as "color circle", is a useful color tool. It reflects the hue, saturation and brightness of the color. Through it, you can easily choose the color combination you like. At the same time, you can clearly see the relationship between colors, such as warm colors, cool colors, contrast colors, similar colors, and so on. In this application, you pick colors on the color wheel. In particular, you are free to adjust the color wheel, for example to change its color range or structure. You can even define a color wheel with a maximum of 48 segments, 12 levels, and a total of 576 colors. Saving colors is another major feature of this app. Once you have chosen the color combination you like, you can save it. You collect various colors and build your own color library. ~~~~~~~~~~~~~ 【Features】 ∙ Multi-color combination: up to six colors can be combined ∙ Color collection management: multi-color and solo-color independent collection, support for naming, sorting and copying ∙ Custom color wheel: define the number of levels, set the range of purity and brightness, etc. ∙ Sliding color selection: slide directly on the color wheel to select the color ∙ Color ruler: indicates the color wheel, similar color, contrast color range in which the color is located ∙ Multiple numerical modes: support HSB, RGB numerical representation, support for integer, decimal representation ∙ Color card: show the color scheme as a card ∙ Color data text export: copy to system paste board ∙ Color card image export: export to album or share to other apps ~~~~~~~~~~~~~ 【Contact】 If you have any questions, suggestions or comments, please contact us at [email protected].
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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.