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
Emergent AI: Vibe Code Apps
Emergent AI is the only reliable way for turning your dream ideas into fully functional web apps and mobile apps
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
90 ratings · Top 30%
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
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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 Emergent AI: Vibe Code Apps: map the core Developer Tools 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
Allow users to choose from templates and customize parameters.
Assumption to check: Limited customization options for generated code
Validate with people who use this workflow before building.
Hypothesis 2
Provide clear explanations of premium features and benefits.
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Optimize AI model or provide offline code generation options.
Assumption to check: Slow response time for code generation
Validate with people who use this workflow before building.
Hypothesis 4
Add functionality for users to share their generated snippets with others.
Assumption to check: Lack of community sharing 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
Emergent AI is the only reliable way for turning your dream ideas into fully functional web apps and mobile apps. Build apps by chatting with AI - no coding required. Our AI app builder turns your ideas into production-ready applications. Build apps by chatting with AI. No coding required. Describe your app. Our AI agents build it. Be it SaaS tools, Games, CRM, Consumer App, E-commerce app - we do it all. You have a team of AI agents working for you. Emergent is the preferred choice of builders as it is more than just a vibe coding platform. It's a coordinated system of specialised agents that handle every stage of development: • Planning Agent - Translates your vision into structured project requirements • Frontend Agent - Designs and builds user interfaces • Backend Agent - Creates APIs, logic, and data architecture • Testing Agent - Identifies issues and ensures reliability • Deployment Agent - Publishes your application with managed hosting One platform. Build through conversation. Full-stack results. WHAT YOU CAN BUILD • Web applications with full backend functionality • Cross-platform mobile apps (React Native + Expo) • Landing pages and marketing websites • Internal tools and admin dashboards • Products ready for real users and paying customers POWERFUL FEATURES • No-code app development through natural conversation • Built-in hosting - deploy instantly, zero configuration needed • Real-time preview directly on your iPhone or iPad • Cross-device sync - start on mobile, continue on desktop • Smart notifications for milestones and deployment status • Clean, maintainable code following industry best practices BUILT FOR EVERYONE Whether you're an experienced developer or an entrepreneur, Emergent adapts to your expertise. Create applications through intuitive interfaces and natural language. For Non-Technical Founders: Build apps and create apps without coding knowledge. Our AI app builder translates your vision into working software. For Entrepreneurs & Startups: Rapidly prototype and develop your ideas. This AI development platform helps you validate ideas faster than traditional app development. START BUILDING FOR FREE Get 10 free credits to explore the platform and start your first project. See what AI-powered development can do before you subscribe. Your app idea deserves to ship. Emergent makes it happen. Start building today. By using Emergent AI app, you agree to Emergent's terms of service ( https://app.emergent.sh/terms-of-service ) and acknowledge Emergent's privacy policy ( https://app.emergent.sh/privacy-policy )
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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
Axios
Async Storage
React Navigation
TypeScript
BUILD KIT DIFFICULTY
Advanced
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.
