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
WristTube+ Player for YouTube
WristTube+ is an advanced YouTube video-watching app designed for Apple Watch
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.9
9 ratings · Below Average
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/
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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 WristTube+ Player for YouTube: 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
Focus on enhancing UI/UX and performance.
Assumption to check: Low rating indicates poor user experience
Validate with people who use this workflow before building.
Hypothesis 2
Add features like background playback and playlist support.
Assumption to check: Limited video playback features
Validate with people who use this workflow before building.
Hypothesis 3
Implement user preferences for video quality and interface.
Assumption to check: Lack of customization options
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
WristTube+ is an advanced YouTube video-watching app designed for Apple Watch. As an upgrade to the original WristTube, this app allows you to watch any video directly on your watch, including live streams. It is compatible with all Apple Watch models, both GPS and LTE versions. WristTube+ offers a convenient and intuitive video-watching experience, keeping you updated and making it easy to manage your content right from your wrist. Features: - Video Search: Quickly search for your favorite videos within seconds. - YouTube Video Player: An easy-to-use video player that supports fast-forwarding and rewinding, with auto-play for the next video, eliminating the need for screen interaction. - Live Stream Support: Watch live stream videos seamlessly. - Trending and Most Popular Videos: Browse trending videos, top picks, and view video statistics. - Save Videos to Favorites: Keep track of your favorite videos with simple saving options. - Watch History: Easily access and manage your video watch history. - Support Widget: Stay connected with quick access to videos through WatchKit widgets. WristTube+ maximizes convenience, allowing you to enjoy YouTube content anytime, anywhere, directly from your watch. Download now and start exploring your favorite videos with ease!
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
Redux
axios
react-navigation
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.
