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.
App Overview
PC Speaker
Turn your iPhone or iPad into a high-fidelity wireless speaker for your PC.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
2 ratings · Below Average
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/
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.
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
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for PC Speaker: 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
Offer advanced audio settings and equalizer features.
Assumption to check: Limited functionality compared to dedicated speakers
Validate with people who use this workflow before building.
Hypothesis 2
Implement robust connection management and error handling.
Assumption to check: Connection stability issues reported
Validate with people who use this workflow before building.
Hypothesis 3
Focus on a modern, user-friendly UI with better accessibility.
Assumption to check: Poor user interface design
Validate with people who use this workflow before building.
Hypothesis 4
Provide themes and custom audio profiles.
Assumption to check: Lack of customization 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
Turn your iPhone or iPad into a high-fidelity wireless speaker for your PC. Need a temporary speaker for your computer? Don't have a Bluetooth adapter, or simply want to listen to your PC audio from across the room? PC Speaker streams your computer's system audio directly to your iOS device over local Wi-Fi with ultra-low latency and crystal-clear quality. REQUIRED COMPANION APP: To use this application, you must download the companion sender program on your PC by visiting "https://speaker.eggmango.com/". This desktop program is the essential module required to capture and transmit your PC's audio to your mobile device. KEY FEATURES - Instant QR Code Pairing No need to type complex IP addresses or configure ports. Just run the companion app on your PC, scan the QR code displayed on the screen, and connection is established instantly. - High-Fidelity Audio Streaming Experience uncompressed Float32 PCM stereo audio at 48,000 Hz. Enjoy clean, high-quality computer sound directly through your iPhone's speakers or connected headphones. - Ultra-Low Latency and Stability Optimized local WebSocket transmission ensures minimal audio delay, making it perfect for watching videos, listening to music, or monitoring PC audio output. - Real-Time Diagnostics and Control Keep track of your audio stream status. The detailed in-app dashboard shows real-time stats like frames received, network data throughput, output routes, volume, and playback gain controls. - Universal Desktop Support Works seamlessly with the lightweight companion sender app on both Windows and macOS systems. HOW TO USE IT 1. On your PC (Windows or macOS), go to "https://speaker.eggmango.com/" to download and run the required companion PC Speaker Sender program. 2. Open this app on your iPhone or iPad. 3. Scan the QR code displayed on your PC screen. 4. Your PC audio will immediately start playing through your iOS device!
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 Native
Expo
React Navigation
Bluetooth API
Async Storage
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.
