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
Couchsurfing: Stay, Meet, Host
You have friends around the world, you just haven’t met them yet
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
9,464 ratings · Top 15%
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.
Build your own version
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/
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 Couchsurfing: Stay, Meet, Host: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
You have friends around the world, you just haven’t met them yet. Couchsurfing is the best way to stay with amazing locals, make lifelong travel friends, or host travelers coming to your hometown. Over 12 million travel enthusiasts use Couchsurfing in more than 230,000 cities around the world. Use the Couchsurfing app to plan and manage your trip itinerary. Find hosts in your next destination • Browse the millions of local hosts offering a place to stay in thousands of cities and towns • Stay with and meet locals and have an authentic travel experience • Explore accommodations options near where you are right now, or near your future destination Make New Friends • Discover thousands of fun events planned by other Couchsurfers in your hometown or in your next travel destination • Use Couchsurfing Hangouts to show you who’s nearby your current location and available to meet up right now Meet Travellers Without Traveling • Host or meet up with incoming travellers coming to your city • Can’t travel right now? Let new cultures and friends come to you And More • Easily create and manage a Couchsurfing profile • Manage your incoming or outgoing requests, messages, and more • Add pictures to document your travel adventures • See which of your Facebook friends also have a Couchsurfing account
Written user reviews are not shown here. Check current App Store reviews >
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 a more robust verification system with user reviews and ratings.
Assumption to check: Limited user verification process can lead to safety concerns.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance user engagement through incentives for hosts to remain active.
Assumption to check: Inconsistent availability of hosts in certain areas.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the messaging interface for easier communication.
Assumption to check: Complicated messaging system that can confuse users.
Validate with people who use this workflow before building.
Hypothesis 4
Add advanced filtering options for better search relevance.
Assumption to check: Limited filtering options for search results.
Validate with people who use this workflow before building.
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
Expo Location
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.
