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 Pixel Resizer
Change the width and height of the videos as per your choice.Using this application, the size of videos could either be decreased or it could be increased.The application could resize even hundreds of videos at the same time.
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.6
8 ratings · Top 50%
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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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/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Video Pixel Resizer: 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
Expand to support more formats like MKV, AVI.
Assumption to check: Limited video format support
Validate with people who use this workflow before building.
Hypothesis 2
Implement more robust algorithms for resizing.
Assumption to check: Inconsistent resizing results
Validate with people who use this workflow before building.
Hypothesis 3
Add tutorials or tooltips for new users.
Assumption to check: Lack of detailed user guidance
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to resize multiple videos at once.
Assumption to check: No batch processing feature
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
Change the width and height of the videos as per your choice.Using this application, the size of videos could either be decreased or it could be increased.The application could resize even hundreds of videos at the same time. For example : If the size of a Video is 1920x1080 , the application could change its size to 1280x720 pixels. Similarly the video size could be increased to 2560x1600 as well. The application also features auto setting of aspect ratio so that the resized videos do not appear stretched out.To maintain the aspect ratio, it adjusts the video so that the Videos do not appear to be stretched out. By reducing the pixel size, the file size of Videos decrease as well. This helps in various purposes like a video of smaller size will take lesser time to upload to a website. Smaller sized video files take lesser time to download and make sharing easier.A smaller sized video also saves data on your mobile data plan when you share, email or upload them to cloud. The application could also increase the pixel size.i.e. using the application you could also increase the video's size if there is such requirement.You could even increase a video of size 1280x960 to 1920x1080. The application offers to specify one size for multiple videos.This helps to resize multiple videos to a specified size at the same time.This saves a lot of time and efforts. If you have a video, you could upload different sizes of videos to the website and offer the customer to download a video that suits well as per their bandwidth and device requirements. The application supports various video formats like MP4,MOV & M4V. Features : - Video Pixel Resizer automatically resizes a large number of videos to fit within a specified resolution while keeping the proper aspect ratio of the original file. - Reduce video file size by changing their pixel size. - Easily share , upload or download the lesser sized Video files - Distribute different sizes of Videos - Batch Process Videos - Resize hundreds of Videos at a time - The application also saves the Video pixel size so that one does not have to enter the video size every time. It also helps in resizing multiple videos in one go.This saves time and efforts.
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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.
