App Overview

Blue Disc icon

Blue Disc

Bruno Paiva · Travel

DISCLAIMER

$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.

Build your own version

Build Kit

Make this idea yours

A product spec, screen plans, and build steps for your coding agent.

First kit free with a verified email

Add to a Remix

Combine features and design from your favorite apps.

Kit ready. Verify your email to download it.

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.

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.

JavaScript is required to complete mailbox verification.

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 Blue Disc: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

Preview ready. Verify your email to reveal and copy the full prompt.

JavaScript is required to complete mailbox verification. Return to this prompt preview.

Continue in Rork copies the full prompt to your clipboard first, then opens Rork in a new tab.

Continue in Rork >

Affiliate link: CloneChart may earn a commission at no extra cost

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 personalized recommendations based on user preferences.

Assumption to check: Users often struggle with discovering new destinations.

Validate with people who use this workflow before building.

Hypothesis 2

Provide an intuitive drag-and-drop interface for organizing activities.

Assumption to check: Itineraries can be cumbersome to manage.

Validate with people who use this workflow before building.

Hypothesis 3

Introduce in-app messaging or discussion boards for each destination.

Assumption to check: Limited communication between users regarding destinations.

Validate with people who use this workflow before building.

Hypothesis 4

Allow users to download destination details for offline use.

Assumption to check: Lack of offline access to travel information.

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

DISCLAIMER Blue Disc is a private and independent application. It does not represent, is not affiliated with, and is not sponsored by any government entity or authority. SOURCE OF INFORMATION The calculation rules used in this application are based on: Switzerland: Art. 48 of the Road Sign Ordinance (OSR) https://www.fedlex.admin.ch/eli/cc/1979/1961_1961_1961/#art_48 France: French Highway Code (Code de la route) and local blue zone regulations Germany: § 13 and § 42 (Zeichen 314) of the German Road Traffic Regulations (StVO) Have you ever been caught out by a fine because you forgot the time on your parking disc? Blue Disc is here to help. This app automatically calculates your parking time limit and sends you a notification before it expires. No need to keep watching the clock—the app handles it for you. HOW IT WORKS - Park and set your physical blue disc as usual - Tap "I am parking now" in the app - Receive an alert before the authorized time ends - That's it. Simple and efficient. FEATURES - Automatic calculation according to Swiss, French, and German rules - Public holidays taken into account - Find blue zone parking spots around you with interactive map - Real-time countdown - Warning notification before expiration - Manual arrival time selection if you parked earlier - Intuitive interface with disc visualization REGULATORY COMPLIANCE The application complies with local regulations: Switzerland: Rounding up to the next half-hour, lunch exception France: Management of lunch break interruptions (e.g. 12pm-2pm not counted) and variable parking durations Germany: Rounding up to the next half-hour for the start of parking CUSTOMIZABLE SETTINGS - Disc requirement period (start and end times) - Morning free time - Warning time before expiration (5, 10, 15 minutes...) IMPORTANT NOTE This application does not replace the physical parking disc, which remains mandatory. It accompanies you by reminding you when your time is almost up. PRIVACY - No account required - Works offline - No data collected - Ad-free Download Blue Disc and avoid unpleasant surprises when returning to your car.

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

< Scroll to see more >

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
React Navigation
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.