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.
ADD COLOR TO A PAPER WORLD!
$6.99 · 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 Pango Colors - Mix & Play: map the core Education 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 activities for free users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Paywall after first activity can deter users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Complexity of mixing colors can confuse young users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited feedback on progress tracking
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.
ADD COLOR TO A PAPER WORLD! Color in an object… and the next one appears instantly! A tree, a horse, a tractor, a balloon… The paper folds and unfolds, slowly revealing an entire world made of paper and origami. Mix your colors and discover new shades! Red, yellow, blue… then green, purple, or brown when you combine them. If you're happy with your creation, take a picture! And that’s not all: once the coloring is done, have fun tossing little paper balls. Surprise guaranteed! Pango Colors helps children explore color mixing while developing patience, focus, and creativity from age 3. A PANGO CREATION For more than 15 years, Pango games have helped children grow gently. Over 15 million children around the world use them. Pango Colors continues this mission by offering a calming, creative experience centered around coloring and paper. WHY PARENTS LOVE PANGO COLORS - Teaches intuitive color mixing - Develops fine motor skills and concentration - Encourages creativity and self-expression - Over 60 objects to color and transform - 4 paper worlds to enrich and explore - No stress, no competition, at their own pace A 100% SAFE GAME FOR CHILDREN • No in-app purchases • No ads • No external links • Built-in parental control • Complies with children's data protection standards PANGO VALUES: CREATIVITY, DISCOVERY, CALM At Pango, we design games that encourage imagination, patience, and gentle exploration. Our worlds provide a soothing space where every child can create at their own rhythm. Need help? A question? [email protected] More info: www.studio-pango.com DOWNLOAD PANGO COLORS and let your child color, mix, and invent their own paper world: SIMPLE, CREATIVE… AND MAGICAL!
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.