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
Merge Bubbles - Word Game
Merge Bubbles is a fresh and satisfying word puzzle game combining word associations with relaxing bubble merging gameplay
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.9
13,026 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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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 included
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.
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 Merge Bubbles - Word Game: map the core Games workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Merge Bubbles is a fresh and satisfying word puzzle game combining word associations with relaxing bubble merging gameplay. Merge matching word bubbles, discover hidden categories, and complete clever word groups in this addictive brain-training adventure. Each bubble contains a word. Your goal is simple: merge related words together. When you successfully collect 4 words from the same category, you complete the set and unlock more bubbles to continue your journey. Easy to learn but challenging to master! Merge Bubbles combines relaxing gameplay with smart word association puzzles that will test your vocabulary and logic. Whether you enjoy word games, matching puzzles, or relaxing brain teasers, Merge Bubbles offers a unique and rewarding experience. HOW TO PLAY: - Merge word bubbles together: Find words that belong to the same category and merge their bubbles. - Complete categories: Collect 4 related words to finish a category and clear space on the board. - Unlock new bubbles: As you progress, more word bubbles drop into your level, creating new challenges and opportunities. - Think ahead: Plan your merges carefully to avoid passing your move count.
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
Incorporate daily challenges and achievements to keep players returning.
Assumption to check: Limited engagement after initial gameplay
Validate with people who use this workflow before building.
Hypothesis 2
Add friend challenges and social sharing options.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 3
Introduce different game modes and themes to enhance variety.
Assumption to check: Repetitive gameplay
Validate with people who use this workflow before building.
Hypothesis 4
Implement rewarded video ads that provide in-game benefits without interrupting gameplay.
Assumption to check: Ads can be intrusive
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
Zustand
react-navigation
react-native-reanimated
@react-native-gesture-handler
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
