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
WigglyPaint : Draw Cute Pixel
WigglyPaint – Cute Wiggly Pixel Art is Here!
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.9
39 ratings · Below Average
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.
Build your own version
Build Kit
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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.
What's included16 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 WigglyPaint : Draw Cute Pixel: 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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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
Introduce more diverse tools and customization options.
Assumption to check: Limited brush options and tools
Validate with people who use this workflow before building.
Hypothesis 2
Optimize the canvas rendering for smoother performance.
Assumption to check: Performance issues with large artworks
Validate with people who use this workflow before building.
Hypothesis 3
Add a social component for users to share and comment on artworks.
Assumption to check: No community features for sharing and feedback
Validate with people who use this workflow before building.
Hypothesis 4
Implement robust auto-save and backup options.
Assumption to check: Inconsistent saving functionality
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
WigglyPaint – Cute Wiggly Pixel Art is Here! Pixels now dance smoother than ever. We rebuilt the entire experience with a fresh look, tons of new colors, and zero-lag drawing. Big thanks for waiting. This update hits different. What’s Inside: Fresh New Design – Clean, intuitive, and just feels right Dozens of Colors – Way more shades to make your art pop Silky Smooth Performance – Drawing is now buttery and instant 8 Cute Animated Brushes – Each with its own unique bounce Live Animation Preview – Watch pixels come alive as you draw Live Photo Export – Save wiggles as Live Photos for your Lock Screen Background Layer Support – Drop in photos or pick solid colors behind your art HD GIF Export – Perfect loops for sharing everywhere Apple Pencil & Touch – Feels amazing on iPhone and iPad Privacy First – Everything stays local on your device What You Can Create: Dancing Pixel Art – Retro vibes with playful motion Animated Stickers – Bouncy reactions for your group chats Wiggly Memes – Content that actually stands out Social Stories – Eye-catching posts, stories, and reels Grab your finger or Apple Pencil. Start drawing and watch pixels spring to life with every stroke. Every line bounces. Every color pops. Whether you are crafting detailed scenes with background layers or quick doodles on the train, this is pixel art like you have never felt before. Export as GIF、Video、Live Photo with one tap. Share instantly. Show the world your wiggles. WigglyPaint – Where Creativity Meets Dancing Pixels!
Written user reviews are not shown here. Check current App Store reviews >
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
Supabase
React Navigation
Zustand
React Native Reanimated
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.
