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
Magic poster
"Discover the ultimate app experience with Business Poster App
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 1.8
4 ratings · Below Average
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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What's included15 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 Magic poster: map the core Reference 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 a wider range of customizable templates
Assumption to check: Limited template options
Validate with people who use this workflow before building.
Hypothesis 2
Design a more modern and user-friendly interface
Assumption to check: Clunky user interface
Validate with people who use this workflow before building.
Hypothesis 3
Optimize image handling for better performance
Assumption to check: Poor performance with large images
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social sharing options to boost engagement
Assumption to check: Low user engagement due to lack of 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
"Discover the ultimate app experience with Business Poster App. Whether you're looking to boost productivity, stay informed, or simply have fun, Business Poster App offers a seamless, user-friendly interface designed to meet all your needs. With regular updates and new features, you'll always have the latest tools at your fingertips. Download Business Poster App today and elevate your everyday life. Some features: - Intuitive design for easy navigation and a seamless user experience. - Stay informed with timely notifications SUBSCRIPTION TERMS: Your Business Poster App Pro subscription will renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can go to your Apple account settings to manage your subscription and turn off auto-renew. Your account will be charged when the purchase is confirmed. Privacy Policy : https://www.notion.so/kutumbapp/Privacy-Policy-for-Zolo-App-36bd32be2bec8094a35ce3d1afd0d1a9 Terms of use : https://www.notion.so/kutumbapp/Zolo-Terms-of-Use-36bd32be2bec80cd9706c025a74e1087 User data deletion url : https://www.notion.so/kutumbapp/Zolo-App-s-Data-Deletion-Instructions-URL-36bd32be2bec80e9909bcc57cd0f609b
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
react-navigation
expo-image-picker
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.
