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
WChat:Chat For Watch
WChat — WhatsApp on Your Wrist
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.4
248 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's included16 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 WChat:Chat For Watch: 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 group chat features, allowing multiple users to chat together.
Assumption to check: Limited functionality for group chats
Validate with people who use this workflow before building.
Hypothesis 2
Add themes and custom emojis for personalization.
Assumption to check: Lack of customization options for chat appearance
Validate with people who use this workflow before building.
Hypothesis 3
Optimize data fetching and local caching for quicker message access.
Assumption to check: Performance issues with message loading
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to send images, videos, and other media files.
Assumption to check: Limited support for media sharing
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
WChat — WhatsApp on Your Wrist Stay connected without ever reaching for your phone. WChat brings fast, full-featured messaging straight to your Apple Watch — text, voice notes, stories, and live presence, all from your wrist. Set Up in Seconds Open the app and follow the simple step-by-step guide to link your watch. No clutter, no confusion — you'll be chatting in under a minute. Your Chats, Now on Your Wrist Experience seamless, real-time communication right from your smartwatch. Key Features Instant Messaging — Send and receive messages in real time. 16 Languages & 14 Keyboards — English, Arabic, French, Spanish, Italian, Portuguese, Greek, Hebrew, Russian, Finnish, Turkish, Dutch, Chinese, Korean, Japanese, and German. Voice Messages — Record and play voice notes on the go. Media Support — Receive images and short videos. Rich Content — Get stickers, shared contacts, and locations. Real-Time Presence — See last seen, check live online status, and message any contact or group. Stories & Status — Browse contact stories directly on your watch. Instant Notifications — Know the moment a new message arrives. Smart Typing — Multiple input methods plus voice-to-text in any language. Privacy Controls — Archive chats, block/unblock contacts, and manage conversations your way. We're constantly adding new features to make WChat even better. Run into an issue? Reach out anytime — we're here to help. Contact Us Email: [email protected] Privacy Policy: http://wchat.codisty.com/privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Disclaimer This is a third-party connector app for WhatsApp Web and is not supported or endorsed by WhatsApp or Meta. WChat connects through your official WhatsApp Web account and complies with WhatsApp's Terms of Use.
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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
Expert
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.
