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
Color by Number：Coloring Games
Discover a world of relaxation, creativity, and diversity with Color by Number: Coloring Game - the ultimate stress-relieving pixel art game! Explore our vast collection of color by number images from various cultures...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
1,833,080 ratings · Top 15%
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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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.
JavaScript is required to complete mailbox verification.
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 Color by Number：Coloring Games: map the core Entertainment workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
< Scroll to see more >
App Store description
Discover a world of relaxation, creativity, and diversity with Color by Number: Coloring Game - the ultimate stress-relieving pixel art game! Explore our vast collection of color by number images from various cultures and artists worldwide or import your own pictures to create a personalized color by number experience. Join millions of users and share your masterpieces with our vibrant community. Key Features: • Easy color by number: Dive into a wide variety of pixel art images designed for both beginners and experienced colorists, featuring popular themes and unique content. • Create unique images: Import pictures from your gallery or snap a photo to turn your memories into color by number masterpieces. • Community sharing: Share your color by number creations and discover other users' pixel art in our thriving community of coloring enthusiasts. • Diverse painting tools: Experiment with different tools to make coloring and drawing more fun and efficient. • Inclusive and diverse art: Immerse yourself in a rich variety of color by number art from different cultures and artists, promoting creativity and inclusiveness. • Antistress and relaxation: Enjoy the calming effects of art therapy as you unwind with our engaging and satisfying color by number game. Get ready to relax and express your creativity with this free coloring game that combines the joy of art with the benefits of stress relief. Whether you're a seasoned artist or just looking for a peaceful pastime, Color by Number: Coloring Game offers an engaging and satisfying experience for everyone. Download now and start your colorful journey today! Terms of Use (EULA) : https://wildlifestudios.com/policy-center/terms-of-use Privacy policy : https://wildlifestudios.com/policy-center/privacy-policy
Written user reviews are not shown here. Check current App Store reviews >
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 larger selection of free images to attract more users.
Assumption to check: Limited image options for free users
Validate with people who use this workflow before building.
Hypothesis 2
Implement a quality check for uploaded images to ensure better user experience.
Assumption to check: Inconsistent color quality in images
Validate with people who use this workflow before building.
Hypothesis 3
Provide an ad-free subscription option with better user experience.
Assumption to check: Frequent ads interrupting the coloring process
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the restore purchase process across devices with clear instructions.
Assumption to check: Difficulty in restoring purchases on different devices
Validate with people who use this workflow before building.
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
expo-image-manipulator
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.
