App Overview

OpnexCast icon

OpnexCast

Changzhou Yizhong Yijia Health Management Co., Ltd. · Utilities

OpnexCast is an all-in-one casting tool that combines a DLNA casting client (supporting local files and URLs) with an AirPlay full-screen casting client (doodle board, LED scrolling text, and browser).

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
2 ratings · Top 5%

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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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 OpnexCast: map the core Utilities 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

Ensure broader device support and testing.

Assumption to check: Limited device compatibility

Validate with people who use this workflow before building.

Hypothesis 2

Implement better error handling and retries.

Assumption to check: Occasional connection issues

Validate with people who use this workflow before building.

Hypothesis 3

Provide more customization options for users.

Assumption to check: Lack of advanced settings

Validate with people who use this workflow before building.

Hypothesis 4

Add features that can work offline or cache data.

Assumption to check: No offline functionality

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

OpnexCast is an all-in-one casting tool that combines a DLNA casting client (supporting local files and URLs) with an AirPlay full-screen casting client (doodle board, LED scrolling text, and browser). Whether you're creating in real time, presenting web content, or playing photos and media, everything can be naturally displayed on the big screen with a full-screen, real-time, and stable casting experience. --- **1. Draw and Cast · Real-Time Display** Create freely on the doodle board and mirror your content to the big screen in real time via AirPlay—what you see is what you cast. Perfect for teaching, presentations, meetings, and capturing ideas. **2. LED Scrolling Text** Supports full-screen AirPlay mirroring, ensuring clear and visible display across the screen. **3. Browser Casting · Full-Screen Display** Supports Safari AirPlay mirroring, allowing web content to be displayed directly on the big screen in full screen. No extra steps required—sharing and presenting is effortless. **4. True Full-Screen Mirroring Experience** Deeply optimized for AirPlay and Apple TV, delivering complete visuals without cropping or distortion for a more immersive big-screen experience. **5. Full-Screen Photo Casting (DLNA)** Easily cast local photos and videos to the big screen via DLNA with one tap. Supports continuous playback, ideal for family sharing and content display. **6. Continuous URL Casting (DLNA)** DLNA-based URL casting ensures stable, uninterrupted playback for a smoother viewing experience. **7. More Efficient User Experience** Card-based home layout for quick access to essential features DLNA slideshow continuous casting for smoother presentations Automatically remembers frequently used DLNA devices for fast, hassle-free connections without repeated setup --- A powerful yet simple way to bring your content to the big screen.

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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.

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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.