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
Euro Tipping
Traveling abroad and unsure how much to tip? EuroTipping gives you clear, practical tipping guidance for 34 countries across Europe and popular destinations worldwide.
$0.99
PRICE
$0.99
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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What's included14 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 Euro Tipping: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Traveling abroad and unsure how much to tip? EuroTipping gives you clear, practical tipping guidance for 34 countries across Europe and popular destinations worldwide. For every country, see what is customary for each situation: restaurants, cafes and bars, taxis and rideshare, hotels, hairdressers and spa, tour guides, and food delivery. No more awkward moments or guesswork at the table. WHAT YOU GET Country guides Browse 23 European countries plus 11 bonus destinations beyond Europe. Each guide shows the local currency, the customary tipping range at a glance, and a short summary of the local tipping culture. Category by category Tap any service type to see clear guidance and a short cultural note. Learn where service is already included, where tipping is expected, and where it is best avoided. AI Tip Calculator Enter your bill amount, choose the country and service type, and get a suggested tip, the total to pay, and a short piece of cultural advice tailored to the situation. Favorites Save the countries you visit most for instant access. Share Send a quick tipping summary for any country to friends and travel companions. COUNTRIES INCLUDED Europe: France, Italy, Spain, Germany, United Kingdom, Netherlands, Greece, Portugal, Austria, Switzerland, Belgium, Ireland, Turkey, Sweden, Norway, Denmark, Poland, Czechia, Hungary, Montenegro, Croatia, Iceland, Finland. Bonus destinations: United States, Canada, Mexico, Egypt, Morocco, United Arab Emirates, Japan, Thailand, Australia, Singapore, Brazil. WHY EUROTIPPING No ads. No subscriptions. Pay once, explore forever. Works offline for all country guides. Your favorites stay private on your device. The app has no account and collects no personal data. Please note: tipping customs vary by region and change over time. EuroTipping offers general guidance to help you travel with confidence, not strict rules. When in doubt, observe what locals do.
Written user reviews are not shown here. Check current App Store reviews >
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
Expand to include more countries and tipping standards.
Assumption to check: Limited country options may frustrate users.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a tutorial or help section.
Assumption to check: No in-app guidance for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Consider integrating a live data source for tipping standards.
Assumption to check: Static data may become outdated.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to save their preferred countries and settings.
Assumption to check: Lack of personalization features.
Validate with people who use this workflow before building.
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
Zustand
React Navigation
Axios
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.
