App Overview

RailsMaps icon

RailsMaps

Bartomiej Banasik · Travel

See how the rail network is built

$4.99 · In-app purchases

PRICE
$4.99
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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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/
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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 RailsMaps: 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

See how the rail network is built. RailsMaps maps railway, metro and tram lines in 1,150+ regions (countries, states, provinces, cities): max speeds, lines under construction, proposed routes, disused and abandoned lines, stations, level crossings, bridges and tunnels, electrification and track gauge. It's an infrastructure map, not a journey planner. Pick a region and you get every line, from national main lines to city trams, downloadable for offline use. One-time purchase. No subscription, no ads. INFRASTRUCTURE MAP MODES • Max speed: lines colored by permitted speed • Electrification: electrified lines by system and voltage (AC and DC) • Track gauge: standard, broad, narrow and mixed • Usage: main lines, branch lines, industrial, heritage and military • High-speed: dedicated high-speed lines and upgraded fast corridors • Stations and halts • Level crossings, classified by safety level • Under construction: lines and extensions being built • Proposed: planned and approved future lines • Historical: disused and abandoned railways Available map modes depend on the region and rail type. EVERY RAIL TYPE • Mainline railways, metro (subway / underground), tram, light rail, narrow gauge, monorail, funicular and miniature railways TAP FOR DETAILS • Tap any line or station for speed, gauge, electrification, usage and Wikipedia info WORKS OFFLINE • Download a region once, then use it with no connection • Offline packs are updated weekly • Detail scales with region size: city packs zoom in further than country packs, and you see the zoom range before you download • Strict offline mode: the app uses only your downloaded packs and makes no network requests • Wi-Fi-only downloads and per-region storage control MAKE IT YOURS • Built-in presets: Default and FreakMaps (infrastructure-style colors) • Custom presets: set rail line colors, widths and opacity • Save up to 20 presets, with separate colors for light and dark maps • Light, dark or auto basemap, plus an OpenStreetMap-style Carto look • Adjustable rail opacity, map labels on or off • Country and city boundary overlays • Compare two regions side by side • App theme: light, dark or system SEE WHERE YOU ARE (OPTIONAL) • Show your position on the rail network, in passive or active location mode • In active mode the map follows you along the line, handy on heritage railways and old routes BONUS: 2 WEEKS OF WEB EXPORT Buying the app includes a free 2-week map export pass for railsmaps.com and freakmaps.com. Style a map, clip it to a region and download it as a watermark-free PNG, right in your browser. One-time claim. COVERAGE • 1,150+ regions: countries, states, provinces and major cities • 13 interface languages Map data © OpenStreetMap contributors. Detail and completeness vary by region. Same data as railsmaps.com, the free web map, now on your phone.

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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 a clean, organized search layout with clear calls-to-action.

Assumption to check: Users often find train search interfaces cluttered and confusing.

Validate with people who use this workflow before building.

Hypothesis 2

Streamline the booking flow with fewer steps and clearer instructions.

Assumption to check: In-app purchase processes can be cumbersome.

Validate with people who use this workflow before building.

Hypothesis 3

Incorporate machine learning to suggest trips based on user preferences.

Assumption to check: Lack of personalized recommendations for users.

Validate with people who use this workflow before building.

Hypothesis 4

Add in-app messaging for immediate support and FAQs.

Assumption to check: Limited customer support options for users.

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
Supabase
Zustand
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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.