App Overview

Paris on Foot : Offline Map icon

Paris on Foot : Offline Map

Chaviro Software · Navigation

This application will guide you through Paris but you’ll remain the boss

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.1
7 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 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.

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.

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

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Paris on Foot : Offline Map: map the core Navigation 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

Enhance offline map features and include more interactive elements.

Assumption to check: Limited offline functionality compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Add user-generated content and review features.

Assumption to check: Lack of user reviews or community features

Validate with people who use this workflow before building.

Hypothesis 3

Simplify purchase options and clarify benefits.

Assumption to check: In-app purchases may confuse users

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

This application will guide you through Paris but you’ll remain the boss. Go wherever you want to go and feel free to lose yourself. Thanks to this app you will always be able to identify your exact location and find your way through the city. -Instantly locate the nearest metro station or vélib bike station. -Store your position so that you can return to it later. -Find a restaurant, bar or museum in the area. -Get your bearings and know in which direction you are heading. -What’s that monument right ahead of you? Where is the Eiffel Tower, the Louvre or La Grande Arche ? -Store your hotel location, or any other location you want. You will always know where they are, and how far they are. This is an offline application; an internet connection is not necessary, nor is a fixed data package. The database contains over 22000 stored locations; just type a name into the search box and there is a high chance that the application will find it for you. Zoom in and out in order to better visualise your location in a neighbourhood or in broader surroundings. This version does not require an internet connection or Wifi. You will not be charged any roaming fees. Remember to calibrate the compass for the iPhone every time you start the app. Stay away from electromagnetic interferences. See instructions for details.

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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
react-navigation
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react-native-async-storage
expo-maps
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.