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
Watch for X
"Watch for X" is an app that allows you to browse X posts right on your Apple Watch
$0.99 · In-app purchases
PRICE
$0.99
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.
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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 Watch for X: map the core Social Networking 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 interactive elements like polls and quizzes.
Assumption to check: Limited user engagement features compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Introduce community moderation and reporting features.
Assumption to check: Inadequate content moderation tools.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance explore section with personalized recommendations.
Assumption to check: Lack of user discovery options.
Validate with people who use this workflow before building.
Hypothesis 4
Create an engaging onboarding experience with tutorials.
Assumption to check: Poor onboarding process.
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
"Watch for X" is an app that allows you to browse X posts right on your Apple Watch. Post data is converted into images, enabling you to check them even when you're offline. ~ Features ~ - Check X posts offline on your Apple Watch. - View posts in the exact same layout as your iPhone. - Zoom in indefinitely on tiny text directly on your Apple Watch. ~ How to Use ~ 1. Launch this app on your iPhone. 2. Open the X post you want to save. *1*2 3. Tap the "Send to Apple Watch" button. 4. Confirm that the post image has been received on your Apple Watch. 5. Repeat the steps above to add more post images. 6. Swipe left or right on your Apple Watch to select a post image. *3 7. Turn the Digital Crown to zoom in on the text. 8. Tap the "Delete" button to remove unwanted images. *1 We recommend logging into your X account beforehand. *2 You can also search for the desired post using the search bar at the top. *3 Swiping will not respond if there is only one post image available. -Video Search ”Shin APP Tech” How to Use & Tips: https://shin-app.tech/en
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.
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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.
