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
Walk Japan - Wanderguide
YOUR PERSONAL TOKYO ADVENTURE GUIDE
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
4 ratings · Top 30%
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 included18 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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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 Walk Japan - Wanderguide: 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
Enhanced content with in-depth guides and user-generated reviews.
Assumption to check: Limited destination information and reviews
Validate with people who use this workflow before building.
Hypothesis 2
Streamlined booking flow with clear steps and confirmation.
Assumption to check: Booking process can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Simplified UI design for better user navigation and experience.
Assumption to check: User interface may feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Implement real-time chat functionality for better host-guest communication.
Assumption to check: In-app messaging feature may lack real-time updates
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
YOUR PERSONAL TOKYO ADVENTURE GUIDE Walk through Tokyo with an immersive journey and your personal pocket tour guide. Whether you're a solo explorer, digital nomad, or traveling with family, we've got your perfect audio tour. GET READY TO DISCOVER TOKYO LIKE NEVER BEFORE Need a local friend to show you around? As you walk through Tokyo's vibrant streets, fascinating stories automatically play through your earbuds. Share one account with family or friends easily. WHY TRAVELERS LOVE US: YOUR PERSONAL GUIDE, YOUR SCHEDULE Explore Tokyo at your own pace with expert-crafted audio tours. No rushing, no requirements – just you and your curiosity leading the way. SMART NAVIGATION THAT ACTUALLY WORKS Follow optimized routes that weave through Tokyo's best spots, from hidden gems to must-see landmarks. Even in the most complex neighborhoods, you'll walk like a local. STORIES THAT WOW YOU Get the real tea on Tokyo's secrets – from ancient samurai tales to where locals actually hang out. These aren't your typical tourist facts; they're the stories that make Tokyo come alive. NEVER MISS THE GOOD STUFF We've mapped out every significant spot, viewpoint, and photo op. Plus, we'll tell you when to look up, down, or around to catch details others walk right past. WHAT MAKES US DIFFERENT: - Works offline (because Tokyo's subway tunnels are real) - Audio syncs perfectly with your location - Curated by local experts who know their stuff - Insider stories & tips - Perfect for both first-timers and Tokyo veterans Got an hour or a whole day? Whether you're diving into Shibuya's energy or seeking peace in Yanaka's old-world charm, there's a tour that fits your vibe. Download now and turn your Tokyo wanderings into adventures worth telling stories about. Your personal tour guide is ready when you are! Note: For offline access, make sure you download the tour while you are connected to the internet. If device is not connected to the internet, it will use offline data for tour map and audio. #TokyoGuide #JapanTravel #TravelGuide #TokyoTourGuide #ExploreJapan ----------------------------------------------------- Enabling Plus (paid) features: You may purchase audio tours through an In-App Purchase. - Your order will be charged to your iTunes account at confirmation of purchase. - For Privacy policy and Terms of Use, please visit these links: https://getwanderguide.com/terms, https://getwanderguide.com/privacy, https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.
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
Expo
Supabase
Zustand
react-native-reanimated
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.
