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
The RDH
RDH – The Ultimate Boat Buying App (Also Cars & RVs)
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 5.0
5 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.
First kit free with a verified email
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Combine features and design from your favorite apps.
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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 included
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 The RDH: map the core Shopping 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 advanced filters for better product discovery.
Assumption to check: Limited product filtering options
Validate with people who use this workflow before building.
Hypothesis 2
Add a product review and rating system.
Assumption to check: No user reviews or ratings feature
Validate with people who use this workflow before building.
Hypothesis 3
Introduce order tracking with push notifications.
Assumption to check: Lack of order tracking
Validate with people who use this workflow before building.
Hypothesis 4
Add a wishlist for saving favorite products.
Assumption to check: No wishlist feature
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
RDH – The Ultimate Boat Buying App (Also Cars & RVs) Looking for your next boat? RDH is the ultimate app for discovering, browsing, and buying boats of all kinds—fast, easy, and secure. From speedboats and sailboats to family cruisers and luxury yachts, RDH puts the world of boating at your fingertips. But that’s not all—you can also buy cars and RVs right from the same app! Key Features: Swipe to Discover: Explore thousands of boats, cars, and RVs using RDH’s fun and intuitive swipe interface. Like a listing? Swipe right. Not interested? Swipe left. Finding your next vehicle has never been this simple. Detailed Listings: Each listing includes high-quality photos, complete specifications, and seller information, giving you everything you need to make informed buying decisions. Connect with Sellers Instantly: Message sellers securely through the app to ask questions, schedule viewings, or negotiate prices—without sharing your personal contact info. Advanced Search & Filters: Filter listings by type, brand, price, size, location, or other important details. Find exactly what you’re looking for, whether it’s a boat, car, or RV. User-Generated Content: Every listing is created by real users or verified dealers. RDH provides a transparent and reliable view of what’s available locally. Safety & Security: RDH encrypts your data in transit and includes tools to block or report suspicious users or listings, ensuring a safe buying experience. Dynamic and Updated Listings: New boats, cars, and RVs are added daily, so you’ll always have access to the latest options. Stay ahead of the market and find the perfect vehicle faster. Why Choose RDH? The ultimate boat-buying app with the added bonus of cars and RVs Swipe to browse thousands of local listings instantly High-quality photos and detailed specs for every listing Secure messaging with sellers Daily updates with new listings Whether you’re buying your first boat, upgrading your car, or hunting for an RV for your next adventure, RDH makes buying and selling vehicles fast, safe, and fun. Join thousands of satisfied users who trust RDH to connect them with local sellers and help them find their dream vehicle. Download RDH today and experience the ultimate marketplace for boats, cars, and RVs!
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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.
SUGGESTED BUILD STACK
React Native
Expo
Zustand
Supabase
React Navigation
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
