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 Britain
Almost 400 magical places to swim in the wild in Britain
$5.99 · In-app purchases
PRICE
$5.99
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
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/
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.
JavaScript is required to complete mailbox verification.
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 Britain: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 user feedback features to enhance engagement.
Assumption to check: Limited user reviews and community engagement
Validate with people who use this workflow before building.
Hypothesis 2
Implement a tutorial or onboarding process to guide users.
Assumption to check: Difficult navigation for new users
Validate with people who use this workflow before building.
Hypothesis 3
Add offline maps and saved locations for better usability.
Assumption to check: Lack of offline functionality
Validate with people who use this workflow before building.
Hypothesis 4
Introduce social sharing options for users to connect.
Assumption to check: No social features for sharing experiences
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
Almost 400 magical places to swim in the wild in Britain. Containing all the content from the the best-selling travel book "Wild Swimming" by Daniel Start (Wild Things Publishing £16.99, second edition, 2013) this app provides all you need to visit hundreds of magical rivers, lakes and waterfalls across the UK. In this great British tour you’ll be able to swim with otters in Devon, go river-tubing in Yorkshire, night-swim under the stars in Oxfordshire and learn how to build a woodland sauna. In each area you can ready background chapters on famous wild-swimmers of the past and read stories of heroes, lovers and ordinary folk who have long enjoyed bathing under the willows. Perfect whether you are a wild swimmer, family paddler or just enjoy a waterside picnic. NOTE: due to the large number of images and places the app is slow to load first time and may not work well (or crash) if many other apps are open in parallel. Please close other apps. You will find preloaded maps, photos, directions and travel writing to inspire and inform. Most locations comes with stunning photography and some include detailed mapping (at 1:25,000 to help walkers and 1:250,000 to help with route-planning). There is contact information for nearby pubs, campsites and attractions. If you need inspiration you can browse the app by slideshow, list, photo gallery and on an interactive map. Ask the app to find places close to you, or search using postcode, address, star rating, walk-in time, keywords or other features. You can share places on email and Facebook and save favourites too.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
@react-native-maps
axios
BUILD KIT DIFFICULTY
Intermediate
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.
