App Overview

Île-de-France Mobilités icon

Île-de-France Mobilités

Ile de France Mobilites · Navigation

Île-de-France Mobilités is here to assist you daily

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.7
4,462 ratings · Top 15%

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 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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Free quick prompt For a smaller starting point

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 Île-de-France Mobilités: 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

Implement advanced filtering and sorting options for route results.

Assumption to check: Users struggle with finding the best routes quickly.

Validate with people who use this workflow before building.

Hypothesis 2

Provide clear explanations and benefits for each purchase option.

Assumption to check: In-app purchases can be confusing for users.

Validate with people who use this workflow before building.

Hypothesis 3

Enable offline access to maps and routes.

Assumption to check: Offline functionality is limited.

Validate with people who use this workflow before building.

Hypothesis 4

Simplify the user interface and focus on essential features.

Assumption to check: Navigation can become cluttered with too many 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

Île-de-France Mobilités is here to assist you daily. Purchase a digital ticket, recharge your Navigo pass, search for routes including trains, RERs, metros, trams, buses, coaches, bicycles, Vélib', car-sharing, or car rentals. Find schedules in real-time or traffic information... Discover essential tools and information for organizing your travels in Île-de-France. Together, let's travel with ease. Avoid queues at stations: buy your transport tickets from your iPhone! The following tickets are available for purchase: - Metro-Train tickets or Bus-Tram Ticket - One Way from/to Airports (you cannot purchase this ticket if you already have a Metro-Train Ticket charged on your device) - Navigo daily (this fare doesn’t permit you to go to airports), weekly, or monthly passes - Special fares (Anti-pollution pass, Paris-Visit Passes etc.) - Daily Vélib’ passes Purchased tickets can then be (depending on the chosen purchasing path): - Stored on the iPhone and validated directly at stations (from iPhone Xr and iOS 17.5) - Loaded onto your Navigo pass (from an iPhone 7, with at least iOS 13. iPhone XR and XS are compatible starting from iOS 14.5) For compatible tickets (Metro-Train and Bus-Tram Tickets, Navigo Day passes, special fares), no account is needed, and you can pay directly with Apple Pay! You can prepare and plan your travels: - Find nearby bus stops, train stations, and metro stations - Search for real-time public transport routes, car-sharing, and bicycle routes - Save upcoming trips in your phone’s calendar - Check the next departures for your lines in real-time and all the timetable information - View maps of public transport networks (accessible even offline) - Follow pedestrian routes for walking segment Stay informed and anticipate disruptions: - Check your lines’ Twitter feed for real-time traffic updates - Get alerts for disruptions on your favorite lines and routes - Stay updated on the status of elevators in the stations you use Customize your travel: - Save your destinations (work, home, gym, etc.), stations, and stops as favorites - Customize your profile (fast walker, with difficulties, reduced mobility, etc.) - Select lines or stations to avoid Prefer soft or alternative modes of transport: - Book car-sharing and/or ride-sharing trips in partnership with leading providers - Opt for bicycle routes for all your trips - Rent a car or a van for a short period by choosing a Communauto car-sharing vehicle from a wide selection of stations around you and book it immediately for the duration of your choice. -- Already using the Île-de-France Mobilités app and enjoying its services? Let us know with a 5-star rating! Experiencing bugs or having feedback to give? Help us improve by sending your suggestions through the contact form available via the personal space.

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 Navigation
Expo Location
Axios
React Native Maps
React Query
BUILD KIT DIFFICULTY
Advanced

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.