App Overview

WigglyPaint's Fork:JigglyPaint icon

WigglyPaint's Fork:JigglyPaint

Kunliang Wu · Productivity

Disclaimer: JigglyPaint is a fork of WigglyPaint, the open-source (MIT) drawing tool made by Internet Janitor

$6.99 · In-app purchases

PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.8
548 ratings · Top 5%

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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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for WigglyPaint's Fork:JigglyPaint: map the core Productivity 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

Offer a wider range of brushes and effects.

Assumption to check: Limited drawing tools compared to other apps

Validate with people who use this workflow before building.

Hypothesis 2

Streamline sharing options and add social media integration.

Assumption to check: Difficulties in sharing artwork directly

Validate with people who use this workflow before building.

Hypothesis 3

Optimize image handling for better performance.

Assumption to check: Performance issues with high-resolution images

Validate with people who use this workflow before building.

Hypothesis 4

Enable real-time collaboration for users to draw together.

Assumption to check: Missing collaboration features

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

Disclaimer: JigglyPaint is a fork of WigglyPaint, the open-source (MIT) drawing tool made by Internet Janitor. We are not Internet Janitor. The original lives here: internet-janitor.itch.io/wigglypaint ▣ Doodle Something. Watch It Wiggle. Export the GIF. ▣ JigglyPaint is a drawing app where the lines refuse to sit still. Every stroke you put down starts squirming on its own, forever, whether you asked for it or not. It's like your drawings are vibing to invisible music. It's fine. It's just like that. That's on purpose. You draw. It wiggles. You export an animated GIF. That is the entire app. There is no tutorial, because there is nothing to learn. If you ever lost an afternoon to WigglyPaint in a browser tab, you already know how this ends. \(°Д°)/ ▣ WHAT'S IN IT ▣ • THE WIGGLE ENGINE Every line animates itself the moment you draw it. No timeline, no keyframes, no rigging, no weekend course. A dead doodle becomes a living, breathing, jiggly mess in exactly zero clicks. The line has made up its mind and it isn't really listening. • THE INFINITE REGRET MACHINE Otherwise known as undo and redo. Made a mistake? Go back in time. Regret going back in time? Go forward again. Nobody has ever reached the end of it. (っ-_-ς) • UNLIMITED COLOURS WigglyPaint ran on one small fixed palette. JigglyPaint hands over the whole spectrum, plus named palettes you can save and reuse. Pick any shade you can imagine, then deliberately pick a worse one. • ANIMATED GIF EXPORT Export your wiggly drawing as a clean, looping animated GIF. Straight into Photos, into Discord, into a group chat where nobody asked for it. • 10,000+ DOODLERS IN ONE FEED Browse wiggly art from people all over the world without leaving the app. Some of it is genuinely beautiful. Some of it is a cursed frog. Both count. • A PILE OF BRUSHES Dynamic brushes and tools that each wiggle in their own way. Half the fun is working out which one does the thing you had in mind. • SHARE IN ONE TAP Save the GIF, send the GIF, post the GIF. Nothing leaves your device unless you decide to send it. ▣ WHY PEOPLE KEEP JIGGLYPAINT INSTALLED ▣ + NO ACCOUNT — Open it and draw. No email, no password, no "confirm you are a human" + NO ADS — Not one. Not even a tasteful one + WORKS OFFLINE — Planes, tunnels and long car rides are prime wiggling conditions + EASY ON PURPOSE — Nothing to learn, which is the entire point + FREE UPDATES — New tools land regularly and cost nothing Chunky pixel styling, big buttons, and a canvas that behaves like a toy instead of a workstation. Serious art software exists elsewhere and we wish it well. (⊙_⊙) ▣ ABOUT THE ORIGINAL ▣ JigglyPaint is a fork of WigglyPaint, the open-source (MIT) drawing tool made by Internet Janitor. It was renamed with the author's consent and has been developed independently since, adding unlimited colours, undo and redo, animated GIF export and the in-app community. WigglyPaint came first and it is still out there: internet-janitor.itch.io/wigglypaint. Go play that too. Everything good about the wiggle came from there. The bugs we added are ours. ▣ GO MAKE SOMETHING THAT MOVES ▣ Your canvas is empty and quietly judging you. Draw one bad line and it will start dancing anyway. If JigglyPaint made you laugh even once, leave a review. It genuinely decides whether anybody else ever finds this thing. (;ω;) Questions, bugs, or a drawing you are weirdly proud of? https://wigglypaint.io ▣ Make art wiggle. Make art move. Make art yours. ▣

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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
react-navigation
expo-sharing
expo-gesture-handler
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.