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
ProCam - Pro Camera
***ONE-TIME PURCHASE, NO SUBSCRIPTIONS***
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
35,272 ratings · Top 15%
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/
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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 ProCam - Pro 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
Simplify the user interface for beginners.
Assumption to check: High complexity for new users with advanced features
Validate with people who use this workflow before building.
Hypothesis 2
Optimize video processing and storage.
Assumption to check: Occasional performance issues during video recording
Validate with people who use this workflow before building.
Hypothesis 3
Integrate built-in cloud backup for user edits.
Assumption to check: Limited cloud backup options
Validate with people who use this workflow before building.
Hypothesis 4
Clarify pricing structure and benefits of premium features.
Assumption to check: In-app purchase confusion
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
***ONE-TIME PURCHASE, NO SUBSCRIPTIONS*** SHOOTING MODES - Photo - Burst Mode - Slow Shutter - Portrait Mode - supported on all dual lens camera system as well as iPhone XR and iPhone SE 2020 - 3D Photo - requires dual lens camera system - Video - Time Lapse PHOTO SHUTTER RELEASE OPTIONS - Self-Timer - Anti-Shake - Screen Shutter / Big Button - Interval VIDEO FRAME RATES AND RESOLUTIONS - VGA, 720p, 1080p - 4K Ultra HD - 3264x1836 upscaled to 3840x2160 - in-app purchase - iPhone 5s / iPad Air 2 and later - 4K Ultra HD - 3840x2160 - native support on iPhone 6s / Plus and later - 4K Max - 4032x2268 - in-app purchase - iPhone 6s / Plus and later - High frame rate: * 48 / 50 / 60 fps 720p - iPhone 5 / iPad mini and later * 96 / 100 /120 fps 720p - iPhone 5s / iPad Air 2 and later * 192 / 200 / 240 fps 720p - iPhone 6 and later * 48 / 50 / 60 fps 1080p - iPhone 6 and later * 96 / 100 / 120 fps 1080p - iPhone 6s / Plus and later * 192 / 200 / 240 fps 1080p - iPhone 8 and later * 48 / 50 / 60 fps 4K - iPhone 8 and later TIME LAPSE FRAME RATES AND RESOLUTIONS - VGA, 720p, 1080p - 4K Ultra HD - 3264x1836 upscaled to 3840x2160 - in-app purchase - iPhone 5 / iPad Air 2 and later - 4K Ultra HD - 3840x2160 - native support on iPhone 6s / Plus and later - 4K Max - 4032x2268 - in-app purchase - iPhone 6s / Plus and later - High frame rate: * 48 / 50 / 60 fps 720p - all devices * 48 / 50 / 60 fps 1080p - all devices * 48 / 50 / 60 fps 4K - iPhone 5 / iPad Air 2 and later * 48 / 50 / 60 fps 4K Max - iPhone 6s / Plus and later MANUAL CONTROLS - Manual exposure, shutter speed, ISO, focus, and white balance controls - Scroll and steppers system inspired by DSLR cameras - Tap location accurate manual focus assist - True focus peaking - Zebra stripes - overexposure warning - Live shutter speed, ISO, focus, and WB values - Manual controls are supported in all photo and video modes MAIN CAMERA FEATURES - RAW (DNG) iOS 10 - iPhone 6s / iPad Pro 9.7 and later - Lossless TIFF file format support - Intelligent 3-shot HDR - AEB (Auto Exposure Bracketing) with RAW support for high contrast conditions - Live light level histogram - Adjustable aspect ratio (4:3 / 3:2 / 16:9 / 1:1) - Video pause/resume functionality - Video audio meter (Avg. / Peak signal levels) - Still photo capture during video recording - Realtime video stabilization (ON/OFF) - Video disk space indicator - Thirds grid and horizontal tiltmeter. - Date / time / location / Copyright stamp PHOTO / VIDEO EDITOR & PHOTO EDITING EXTENSION - Nondestructive editing - all edits, including cropping, are completely amendable / reversible - 60 expertly crafted filters - 17 lenses: Vignette / White Vignette / Fisheye / Tilt Shift / Macro / Tiny Planet / Wormhole / Split / Kaleidoscope I, II, III, IV, V / Ripple / Striped / Hatched / Halftone - 19 comprehensive adjustment tools - Trimming, cropping, rotating, mirroring, straightening, and perspective correction - Extremely accurate timeline with the ability to review videos frame by frame - Ability to add background music
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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.
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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.
