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
Adult Coloring Book - Bloom
▶ Bloom: Adult Coloring Book for Relaxation
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
7,144 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.
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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 included17 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 Adult Coloring Book - Bloom: map the core Lifestyle 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
Provide more diverse tools like gradients and textures.
Assumption to check: Limited coloring tools compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a less aggressive paywall with clear value.
Assumption to check: In-app purchase prompts can be intrusive
Validate with people who use this workflow before building.
Hypothesis 3
Create a more intuitive navigation system with better filters.
Assumption to check: Difficult navigation between galleries
Validate with people who use this workflow before building.
Hypothesis 4
Regularly update the gallery with new and diverse artwork.
Assumption to check: Artworks can lack variety and refresh rate
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
▶ Bloom: Adult Coloring Book for Relaxation Bloom is a relaxing adult coloring book designed for stress relief and mindful creativity. The Bloom coloring app brings detailed pages, soothing palettes, and a calming coloring experience you can enjoy anytime. If you’re looking for a peaceful escape, Bloom helps you slow down, focus, and create beautiful artwork with ease. Whether you love mandalas, flowers, animals, or abstract designs, Bloom makes coloring simple and satisfying. ▶ Relax, Color, and Create with Bloom The Bloom adult coloring app transforms your free time into a mindful experience. With smooth tools and carefully crafted illustrations, Bloom delivers a natural digital coloring experience that feels intuitive and rewarding. Color at your own pace, explore cozy palettes, and enjoy moments of calm wherever you are. Key Features: ▶ 1000+ adult coloring pages and categories ▶ Mandalas, flowers, animals, abstract art & more ▶ Relaxing color palettes for stress relief ▶ Smooth and intuitive digital coloring tools ▶ Designed for mindfulness and relaxation Bloom is perfect for adults, teens, and anyone who enjoys creative relaxation. Discover why thousands choose Bloom as their go-to coloring book app for stress relief and calm. Download Bloom today and start your relaxing coloring journey. Bloom Privacy Policy: https://bloomcoloringbook.com/privacy Bloom Terms of Use: https://bloomcoloringbook.com/terms
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
Zustand
react-native-reanimated
react-native-svg
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.
