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
WatchLink
WatchLink is a community based platform for watch enthusiasts to buy, sell, bid, discuss, and connect.
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 5.0
54 ratings · Top 5%
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 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 WatchLink: 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
Incorporate a commenting system and the ability to follow users.
Assumption to check: Limited social interaction features compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize image handling and consider lazy loading.
Assumption to check: Performance issues with image loading.
Validate with people who use this workflow before building.
Hypothesis 3
Implement reporting and moderation features for user-generated content.
Assumption to check: Lack of content moderation tools.
Validate with people who use this workflow before building.
Hypothesis 4
Add a messaging feature for users to connect privately.
Assumption to check: No direct messaging option.
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
WatchLink is a community based platform for watch enthusiasts to buy, sell, bid, discuss, and connect. Whether you’re hunting for your grail, offloading a piece of your collection, or just want to connect with others who share your passion. We’ve taken the best parts of social networking and tailored them specifically for people who live and breathe watches. · Buy & Sell Feed: Post your watches for sale and browse listings from other collectors. No fees to post, no fees to buy. Utilize our filters to find exactly what you’re looking for. · Auction Feed: Run your own auctions from start to finish. Free for WatchLink+ members! You’re in full control of the process, and by closing the deal directly with the winner, you avoid the transaction fees that come with typical auction platforms. · ISO Feed: Post your grail here, or browse what others are looking for to see if it’s a part of your inventory. · Social Feed: Post what’s on your wrist, talk watches with others who share your passion, ask questions about anything in the industry – it’s all done here. · Chats & Group Chats: Connect one-on-one or join group chats built around shared interests, brands, or communities. · WatchLink+: Subscribe to WatchLink+ to unlock unlimited auction & ISO posts, gain access to exclusive group chats, and receive a boost to your posts in the algorithm. · Build Your Profile: Grow your presence with followers, badges, and achievements as you buy, sell, and engage with the community. Invite your friends and earn rewards for growing the network! Join WatchLink for free now to become a part of the world’s best watch community.
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
Supabase
React Navigation
Zustand
expo-image-picker
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.
