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
Leprecam
Celebrate St
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
5 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.
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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 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 Leprecam: map the core Entertainment 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
Add more diverse and fun filters and effects.
Assumption to check: Limited filter options and effects
Validate with people who use this workflow before building.
Hypothesis 2
Implement thorough testing and user feedback loops to improve stability.
Assumption to check: Low user ratings due to bugs
Validate with people who use this workflow before building.
Hypothesis 3
Integrate social media sharing options and direct sharing to contacts.
Assumption to check: Lack of sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Simplify navigation and provide clear onboarding for first-time users.
Assumption to check: Unintuitive navigation
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
Celebrate St. Patrick's Day and show your Irish pride with a Leprechaun Photo Bomb! With Leprecam, you can add a Leprechaun to any photo! Simply take a photo or use an existing one, add one of our 29 Leprechauns. Magically place the Leprechaun behind people or other objects, erase parts as needed to fit seamlessly into your picture. You can also add hats, pots of gold, and shamrocks to further enhance your photo. Process the photo with cool effects or add text, then share your creation with the world! Features: * 29 different Leprechauns to choose from * 10 hats, pots of gold, and shamrocks to enhance your St Patrick's Day spirit * Magically place the Leprechaun behind people, animals, and objects with one tap * Scale, Move, and Erase the Leprechaun so he seamlessly fits any scene * Use our photo editing features including Effects, Enhance, Crop, Brightness, Contrast, Red Eye, Frames and more * Create a Meme * Share to socials!
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
expo-camera
react-navigation
expo-image-manipulator
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.
