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
Film Farm - Film Camera
Film Farm brings a film-inspired camera experience to your iPhone — in real time.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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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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 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 Film Farm - Film Camera: 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
Add more filters and adjustment options.
Assumption to check: Limited editing features compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Simplify navigation and improve onboarding.
Assumption to check: User interface could be confusing for new users
Validate with people who use this workflow before building.
Hypothesis 3
Implement cloud storage options for user edits.
Assumption to check: No cloud backup for edits
Validate with people who use this workflow before building.
Hypothesis 4
Integrate sharing options to social media platforms.
Assumption to check: Lacks social 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
Film Farm brings a film-inspired camera experience to your iPhone — in real time. Every preset is carefully crafted to capture the colors, contrast, grain, and mood of analog photography, from classic color negatives to cinematic film looks. [FEATURES] • 50+ film looks across color, B&W, slide, and cinema categories • Real-time preview — what you see is what you get • Photo & video capture with film looks applied • Pro Mist diffusion effect with 4 intensity levels • Adjustable grain, vignette, and contrast • FHD 1080p video up to 60fps • Grid overlay and tap-to-focus • Designed for simplicity — pick, set, shoot Film Farm is built for creators who love the look of film and want the convenience of digital. Film your day. --- Film Farm은 아이폰에서 필름 감성을 실시간으로 경험할 수 있는 카메라 앱입니다. 클래식 컬러 네거티브부터 시네마 필름까지, 아날로그 사진의 색감, 콘트라스트, 그레인, 무드를 세심하게 구현한 프리셋을 담았습니다. [주요 기능] • 컬러, 흑백, 슬라이드, 시네마 카테고리의 50가지 이상 필름 룩 • 실시간 프리뷰 — 보이는 그대로 저장됩니다 • 필름 룩이 적용된 사진 및 영상 촬영 • 4단계 강도의 Pro Mist 디퓨전 효과 • 그레인, 비네트, 콘트라스트 조절 가능 • FHD 1080p 영상, 최대 60fps • 그리드 오버레이 및 탭 포커스 • 심플한 사용성 — 고르고, 설정하고, 찍으세요 Film Farm은 필름의 감성을 사랑하면서도 디지털의 편리함을 원하는 크리에이터를 위해 만들어졌습니다. 오늘을 필름 감성으로 담아보세요.
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
react-navigation
react-native-reanimated
expo-image-picker
Lodash
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.
