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
Video Reverser.
Transform your videos effortlessly with Video Reverser! This app offers powerful tools to bring a fresh perspective to your video content
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
55 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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 Video Reverser.: map the core Graphics & Design 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
Implement broader format compatibility.
Assumption to check: Limited video format support
Validate with people who use this workflow before building.
Hypothesis 2
Provide more precise speed controls.
Assumption to check: Inconsistent speed adjustment
Validate with people who use this workflow before building.
Hypothesis 3
Add features like trimming and filters.
Assumption to check: Lack of advanced editing features
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to preview changes before finalizing.
Assumption to check: No preview before saving
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
Transform your videos effortlessly with Video Reverser! This app offers powerful tools to bring a fresh perspective to your video content. Perfect for creators at any level, with Video Reverser, you can turn ordinary moments into extraordinary visuals by reversing, speeding up, or adding a unique audio twist Reverse specific segments for unique effects, change the speed to match your creative vision, and add your favorite music or sound effects to enhance the experience. Our user-friendly interface ensures that you can start editing with ease. Key Features: - Reverse at Any Part of the Video Simply select the segment you want to reverse, and watch your video play backward. Whether it’s a funny dance move, a dramatic entrance, or a mesmerizing sunset, you’re in control - Adjust Playback Speed Change the speed of your video to match your creative vision. Our app provides you with precise control over the speed of your videos, enabling you to slow things down or speed them up with our intuitive playback speed controls. - Add Background Audio Easily add your favorite music, voiceovers, or sound effects to enhance your video’s emotional impact and engagement. Download Video Reverser now and experience the power of creativity at your fingertips!
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
Zustand
expo-video
expo-image-picker
react-navigation
BUILD KIT DIFFICULTY
Intermediate
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.
