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
DualShot Recorder
DualShot Recorder captures simultaneous portrait (9:16) and landscape (16:9) video from your iPhone's dual rear cameras in one take
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
727 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 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 DualShot Recorder: 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
Include editing features such as trimming and filters.
Assumption to check: Limited functionality for video editing
Validate with people who use this workflow before building.
Hypothesis 2
Implement cloud backup for recorded videos.
Assumption to check: No cloud storage for videos
Validate with people who use this workflow before building.
Hypothesis 3
Add sharing options to various platforms.
Assumption to check: No integration with social media
Validate with people who use this workflow before building.
Hypothesis 4
Provide more features in the free version to enhance user retention.
Assumption to check: In-app purchase for basic 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
DualShot Recorder captures simultaneous portrait (9:16) and landscape (16:9) video from your iPhone's dual rear cameras in one take. Hit record once and get two perfectly synced files saved directly to your Photos library. Perfect for content creators who need both vertical and horizontal footage without filming twice. Features: Simultaneous dual-camera recording (wide + ultra wide) Single lens mode with front and back camera support 4K and 1080p resolution at 24, 30, or 60 fps MOV and MP4 file format options Apple Log recording for maximum dynamic range and color grading flexibility Built-in teleprompter with adjustable scroll speed and text size Manual ISO control for locked exposure across every take Video stabilization with an accurate preview of your final crop Fast, sharp autofocus that stays locked even while you zoom Quick gallery access — jump straight to your footage without leaving the app Your Device's Features screen showing exactly what your iPhone supports Real-time storage estimate so you never run out of space Torch/flashlight control Full VoiceOver accessibility support Join the DualShot Recorder creator community for tips, feedback, and support No ads, no tracking, no accounts — your footage stays on your device Requires iPhone XS or newer with dual rear cameras for dual-lens mode.
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
expo-camera
expo-media-library
react-native-share
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.
