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
Green Screen Wizard Mobile
This app puts green screen photography special photo effects at your fingertips! Put your child in a fairy tale castle, your girlfriend on an exotic beach, and you and your buddies at the Super Bowl! Simply pose your...
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.5
23 ratings · Top 50%
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
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A product spec, screen plans, and build steps for your coding agent.
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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 included14 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 Green Screen Wizard Mobile: map the core Photo & Video 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 customizable backgrounds and user uploads.
Assumption to check: Limited background options
Validate with people who use this workflow before building.
Hypothesis 2
Optimize AI processing for faster background removal.
Assumption to check: Occasional processing lag
Validate with people who use this workflow before building.
Hypothesis 3
Create a clearer pricing structure and trial period.
Assumption to check: Subscription confusion
Validate with people who use this workflow before building.
Hypothesis 4
Implement advanced AI features for better quality control.
Assumption to check: Inconsistent image quality
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
This app puts green screen photography special photo effects at your fingertips! Put your child in a fairy tale castle, your girlfriend on an exotic beach, and you and your buddies at the Super Bowl! Simply pose your subject(s) in front of a green screen and replace the green with any background on your camera role! This app uses the same powerful green screen algorithm found in the desktop version of Green Screen Wizard software used by over 25,000 photographers and photo hobbyists. Get started now having fun with your kids or be the life of the party! All you need it this app and a green backdrop (you can use green paper or purchase a green screen). Now with a built in Erase/Restore editor This app does not do video. FEATURES o Load foreground and background Images o Creates Portrait and Landscape output o Move and Size foreground and background o Change green extractions values o Correct brightness of foreground and background o Correct color of foreground and background o Rotate foreground or background o Clip foreground o Create silhouettes o Erase/Restore Editor o Share your creations using Email or Facebook o Printing
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
zustand
axios
expo-image-picker
react-navigation
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.
