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
Vienna Sightseeing Bus Tour
Explore Vienna's iconic landmarks with the Vienna Sightseeing Hop-On Hop-Off Bus stop navigation app!
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
1 ratings · Below Average
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 included16 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 Vienna Sightseeing Bus Tour: 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
Offer a wider range of tours and experiences.
Assumption to check: Limited tour options leading to user dissatisfaction
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the booking process with clearer instructions.
Assumption to check: Poor user reviews indicate issues with booking clarity
Validate with people who use this workflow before building.
Hypothesis 3
Implement in-app chat for customer support.
Assumption to check: Inadequate customer support channels
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download tour details for offline access.
Assumption to check: No offline access to tour details
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
Explore Vienna's iconic landmarks with the Vienna Sightseeing Hop-On Hop-Off Bus stop navigation app! Discover the heart of Austria's capital at your own pace as you hop on and off at various attractions. Immerse yourself in the rich history, culture, and stunning architecture of Vienna. This unofficial app provides you with essential information about the Vienna Sightseeing bus routes and stops. Plan your ideal itinerary and make the most of your visit to Vienna. Enjoy the convenience of navigating the city easily, all at your fingertips. Key Features: - Explore Vienna's landmarks and attractions conveniently with a hop-on hop-off bus. - Access essential information about various tour routes and stops. - Plan your personalized sightseeing itinerary according to your preferences. - Learn about the history and significance of each stop with detailed descriptions. Please note that this app is not affiliated with the official Vienna Sightseeing organization. Embark on a memorable journey through Vienna and discover its beauty and charm. Let the Vienna Sightseeing Hop-On Hop-Off Bus app be your guide in this vibrant city! Terms and Conditions: https://beyourbest.lat/hoho-terms.html Privacy Policy: https://beyourbest.lat/hoho-privacy.html
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
React Navigation
Zustand
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.
