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
Vintage Camera: M10 Simulator
Point and shoot with our unique analog camera experience.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
11 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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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 Vintage Camera: M10 Simulator: 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
Implement a wider range of filters and user-generated content.
Assumption to check: Limited filter options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Enhance stability and performance during image processing.
Assumption to check: Occasional crashes during photo saving
Validate with people who use this workflow before building.
Hypothesis 3
Integrate cloud storage options for users to save and share their photos.
Assumption to check: Lacks cloud backup for photos
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the UI and provide onboarding tutorials.
Assumption to check: User interface can be confusing for new users
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
Point and shoot with our unique analog camera experience. FLICA brings you evocative experience with the beauty of vintage photography. Specialized in old-school and film photography, FLICA emulates the analog camera experience in a way that no other apps even come close. From vintage design to replicating sounds, from black and white to retro colors, you'll be brought back to 1900s where the age of analog photography flourishing. With FLICA, all the analog photography's imperfections can be rebuilt to make a perfect vintage photo. CLASSIC CAMERA FLICA is the perfect combination between analog and digital photography. With classical experiences implemented using modern gestures, you'll see how fun it is when you can tap and swipe to zoom or to switch between films. SELECTIVE 35MM FILM SUITE Including our unique presets which replicating the look and feel of vintage camera films. - Kodak Ektar 100 - Kodak Gold 200 - Kodak Portra 400 - Kodak Aerochrome 16 - Fuji Superia 200 - Fuji Superia 800 - Fuji Astia 100F v3 - Fuji Instax Mini - Fuji FP 100C - Fuji Pro 400H - Ilford Delta 100 - Ilford Delta 400 - Agfa Optima 200 - Agfacolor 40s, 50s, 60s Your favorite analog films are here. Enjoy the moments without retouching. Download now and Enjoy our totally free camera.
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
Expo Camera
React Navigation
Expo Image Manipulator
Async Storage
React Native Vector Icons
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.
