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
Cinecam: Pro Video Camera
CineCamera transforms your iPhone into a professional cinema camera with real-time color grading, full manual exposure controls, and cinema-standard recording options.
$7.99
PRICE
$7.99
No 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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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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 Cinecam: Pro Video 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
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
CineCamera transforms your iPhone into a professional cinema camera with real-time color grading, full manual exposure controls, and cinema-standard recording options. Record at 24, 25, 30, 48, 50, or 60 fps. Choose between 720p, 1080p, and 4K UHD resolution. Frame your shots with seven aspect ratios: 16:9, 2.39:1, 2.2:1, 1.85:1, 9:16, 4:3, and 1:1. Select from four color spaces: SDR 8-bit, SDR 10-bit, HDR Dolby Vision, and Apple Log. Four stabilization levels — Off, Standard, Cinematic, and Extreme — match any shooting style. Apply cinematic color grades in real-time from a curated library of LUTs organized into Cinematic, Vintage, Mood, Clean, and Black & White categories. Preview every look live on screen. Your selected LUT is baked directly into the final video and no post-production needed. Take full control of your exposure. Shutter supports Angle mode (72, 144, 180, 270, 288, 360 degrees) and Speed mode (1/24 to 1/8000), or leave it on Auto. ISO switches between Auto and Manual with a precision slider and quick presets matched to your device. White Balance offers seven presets: Auto, Tungsten, Fluorescent, Daylight, Cloudy, Shade. Plus a Custom mode with a 2000K to 10000K temperature slider. Switch between all available lenses on your device: 0.5x ultra-wide, 1x wide, and telephoto. Smooth digital zoom from 1x to 15x with quick preset buttons. Manual focus lets you switch between AF and MF with a horizontal gauge for precise control. Compose with grid overlays including Rule of Thirds, Golden Ratio, Crosshair, and a real-time Horizon Level with tilt readout. Monitor audio with a 12-segment color-coded level meter and dB display in the status bar. Toggle the LED torch from the bottom bar. All frame rates, all grid overlays, 1x lens, 1080p recording, auto exposure, auto focus, auto white balance, 16:9 aspect ratio, audio monitoring, torch control, all cinema LUTs, ultra-wide and telephoto lenses, 4K recording, manual shutter, manual ISO, manual white balance, manual focus, zoom control, all aspect ratios, video stabilization, and HDR and Apple Log color spaces. Pro features are marked with a lock icon throughout the app. Terms of Use - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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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.
