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
Dee Valley Tourist Guide
A tour guide in your pocket
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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's included17 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Dee Valley Tourist Guide: 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
Implement offline caching for attractions and events.
Assumption to check: Limited offline functionality
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to add reviews and photos.
Assumption to check: No user-generated content
Validate with people who use this workflow before building.
Hypothesis 3
Improve map features with better route guidance.
Assumption to check: Navigation complexity in crowded areas
Validate with people who use this workflow before building.
Hypothesis 4
Integrate AI for tailored attraction suggestions based on user preferences.
Assumption to check: Lack of personalized recommendations
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
A tour guide in your pocket. The Dee Valley Tourist Guide app provides tourist information and maps for the Dee Valley covering Llangollen, Chirk, Corwen, Bala and local area including the World Heritage Site centred around Pontcysyllte Aqueduct. First launched in 2012 the Dee Valley app has been fully updated for 2023 to use the most up to date software development technologies. The Dee Valley is situated in picturesque North Wales, Great Britain. 60 miles from Liverpool, 70 miles from Manchester and 200 miles from London. The app is informative, easy to use and will enhance your visit to the Dee Valley. There are many places of interest and things to do displayed in the app. We hope you will visit them and get to know the local people, customs, and hear some of the Welsh language spoken. 5 Star - "Just what you need in a guide!" I'm about to spend 3 days cycling this area. This guide is well thought through, easy to navigate and comprehensive. Well done to all those involved! 5 Star - "Perfect App for Visitors to the Dee Valley in North Wales" This is perfect for any visitor coming to the Dee Valley in beautiful North East Wales. A useful guide which details many places of interest including the Pontcysyllte Aqueduct UNESCO World Heritage Site, Chirk Castle, Castell Dinas Bran, Caer Drewyn Iron Age hillfort within the Clywdian Range Area of Outstanding Natural Beauty and Plas Newydd former home of 'The Ladies of Llangollen'. This app is perfect inspiration when deciding what to see and do, it is well researched and is full of maps, photo's and useful information such as where to find banks, railway stations, car parks, toilets, chemists. There are so many great places of interest to visit detailed, the biggest difficulty will be fitting them all into you stay in North Wales! Key app features: • Fully featured offline mode for low signal areas • High resolution retina display graphics included • 179 photographs including 19 superb aerial shots by Kim Price • 85 facilities such as car parks, leisure and activity centres, petrol stations, libraries, tourist information centres and public conveniences • 32 featured places including towns, villages and places of interest • 30 interesting locations including tourist attractions, things to do and points of interest • 6 annotated online interactive maps (internet connection required) • Favourites – add places to your favourites list to access and arrange them easily on a separate tab ready for your visit All text and photographs are available offline. Interactive map features require an internet connection. The app was written, designed and developed by people who live and work in the Dee Valley. App development by A5 Multimedia Ltd. www.a5multimedia.com
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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 Navigation
Expo Location
Axios
React Native Gesture Handler
React Native Maps
Redux
BUILD KIT DIFFICULTY
Starter
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.
