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
Tromsø City Guide
Tromsø City Guide, your own iOS tourist guide for Tromsø
$3.99 · In-app purchases
PRICE
$3.99
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.
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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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Combine features and design from your favorite apps.
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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.
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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 Tromsø City 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
Incorporate a robust review system that encourages users to leave feedback.
Assumption to check: Insufficient user reviews and ratings can deter users from trusting the app.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance the app with a wider range of attractions, restaurants, and user-generated content.
Assumption to check: Limited content may result in user dissatisfaction.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a better navigation system with interactive maps and step-by-step directions.
Assumption to check: Navigation may be confusing without clear directions.
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the booking process with guided steps and clear options.
Assumption to check: Users may feel overwhelmed by booking options.
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
Tromsø City Guide, your own iOS tourist guide for Tromsø. Your own travel guide to glimpse out Tromsø's Tourist Spots. Don't spend hours on Internet trying to organize your journey. Tromsø City Guide makes your trip easier and memorable by providing information required to have a successful trip. Quick access to Tromsø attractions, museums, activities around Tromsø, entry fee, how to reach, opening hours, contact details, offline map, emergency numbers, timezone, currency etc. Features include: - Fully Illustrated: Not just text contents, but a visible experience of the city. - Up-to-date Guides: Carefully selected destinations and attractions of the city, with Offline Map included. - Rich Information: Offline information about destinations, how to reach, entry fee, contact details, opening hours, emergency numbers, timezone, currency etc. - Navigation with Ease: The guide locate all destinations on a zoomable map. It's easy to find out the right way to go. - Easy to Use: Integrated phone numbers for fast dialing. One click to send email or to access website of destination. - Create your own favorite list and also can see your favorite places on offline map. - In/around Activities: This guide features activities in and around Tromsø, information about the various tours operated by different Tour companies. - Information Center: Details about Tourist Information Centre of Tromsø opening hours, contact details etc. Free updates are coming soon. Please Rate the App if you like it to get it known to other interested people, Thanks! Also if you have any problems, comments, or suggestions for improvement, we'd love to hear from you at [email protected]
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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 Native
Expo
Zustand
@supabase/supabase-js
react-navigation
expo-location
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.
