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
WatchSpotting
Ever noticed a watch on screen and wondered what it was? WatchSpotting is the definitive database of watches identified in films, cataloging over 2,160 sightings across 1,400+ films.
$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'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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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 WatchSpotting: map the core Entertainment 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
Enhance with personalized recommendations based on viewing history.
Assumption to check: Limited content discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Integrate social features to share favorite shows with friends.
Assumption to check: Lack of social sharing options
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline downloads for saved shows.
Assumption to check: No offline viewing capabilities
Validate with people who use this workflow before building.
Hypothesis 4
Focus on a modern, visually appealing UI that enhances user engagement.
Assumption to check: Poor user interface design
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
Ever noticed a watch on screen and wondered what it was? WatchSpotting is the definitive database of watches identified in films, cataloging over 2,160 sightings across 1,400+ films. BROWSE THE DATABASE Explore sightings by film, actor, or watch brand. From James Bond's Omega Seamaster to Steve McQueen's TAG Heuer Monaco, find every watch that made it to the big screen. SEARCH & DISCOVER Search for any film, actor, or brand to find detailed watch identifications. Each sighting includes the watch brand, model, reference number, and the scene context. COMMUNITY FEATURES Vote on sighting accuracy, leave comments, and discuss identifications with fellow watch and film enthusiasts. Spotted a watch we missed? Submit your own sighting. CONFIDENCE RATINGS Every sighting is rated as Confirmed, Likely, Possible, or Unidentified, so you know how certain each identification is. BUILT FOR WATCH LOVERS - 2,160+ watch sightings - 1,400+ films covered - 185+ watch brands - 1,000+ actors - Community voting and comments - Submit your own discoveries - Offline caching for browsing on the go
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
Axios
React Navigation
React Native Reanimated
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.
