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
Wild Swimming Spain
Wild Swimming Spain: Discover the Most Beautiful Rivers, Lakes and Waterfalls of Spain
$3.99
PRICE
$3.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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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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/
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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 Wild Swimming Spain: 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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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
Show total price upfront including all fees
Assumption to check: Hidden fees revealed at checkout
Validate with people who use this workflow before building.
Hypothesis 2
In-app chat with fast response times
Assumption to check: Poor customer support
Validate with people who use this workflow before building.
Hypothesis 3
3-step booking with clear progress
Assumption to check: Complicated booking process
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
Wild Swimming Spain: Discover the Most Beautiful Rivers, Lakes and Waterfalls of Spain Discover over 150 magical places to swim and explore in Spain. With stunning photography this book reveals the best crystal mountain lakes, secluded lake-side beaches, and turquoise pools hidden deep in waterfall-filled gorges. With recommendations for places to camp and eat this is all you need to take you off the beaten track. • Plunge into the crystal clear turquoise waters of the Picos de Europa’s glacial lakes • Discover the laid-back reservoir beaches of Andalucia • Explore the magical waterfall grottos of the Pyrenees • Swim in the secret pools of the Rio Tajo in Guadalajara John Weller is an all year round wild swimmer, lido-lover and landscape photographer from London. Lola Culsán is a half-Spanish ex-stand up comic who teaches, writes and swims. They have been adventuring across Spain - charting its secret rivers, lakes, and waterfalls - for the last three years. They can often be found travelling in their 20-year old campervan with their teenage boys and some Elvis tunes.
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
Mapbox
Stripe
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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.
