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
FilmRoll - Film Camera Recipe
FilmRoll
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 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.
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's included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 FilmRoll - Film Camera Recipe: 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
No watermarks, premium for HD export only
Assumption to check: Watermarks on free tier
Validate with people who use this workflow before building.
Hypothesis 2
Chunked processing with progress indicator
Assumption to check: Crashes on large files
Validate with people who use this workflow before building.
Hypothesis 3
AI-powered filters and one-tap enhance
Assumption to check: Limited filters
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
FilmRoll Experience the true essence of film at your fingertips! This app brings analog vibes into the digital world, perfectly capturing the charm of film cameras. Turn your special moments into extraordinary memories. Key Features 1. Manual Mode Adjust white balance, shutter speed, and ISO like a pro for precise control over your shots. 2.Film Simulator Recreate the unique tones and textures of classic film with a variety of film effects. 3.Authentic Camera Experience Enjoy the tactile feel of operating a real camera, unlike any digital alternative. 4.White Balance Fine-tune color temperature to match the mood and atmosphere you want to capture. 5.Shutter Speed & ISO Control Masterfully balance light and motion for creative and dynamic photography. This app goes beyond simple photo-taking. It’s your gateway to heartfelt photography, capturing emotions and memories with every shot. Some features and film effects may require additional in-app purchases. • Subscribe to get unlimited access to ALL FilmRoll features and tools. • FilmRoll PRO is available as a subscription with two options: – Monthly: $2.99 (after a 3-day free trial) – Annual: $19.99 (after a 3-day free trial) Prices may vary depending on your country of residence and may be converted to your local currency. • Payment for your FilmRoll PRO subscription will be charged to your iTunes Account after purchase confirmation. Your subscription will automatically renew, and your account will be charged for renewal within 24 hours prior to the end of the current period. You can turn off auto-renewal at any time in your iTunes account settings, but refunds will not be provided for any unused portion of a subscription period. If you purchase your subscription during the free trial period, any unused portion of the free trial will be forfeited. Terms of Use : https://han.gl/XyCH3 Privacy Policy : https://han.gl/SNxbr
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
FFmpeg
Supabase Storage
RevenueCat
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.
