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
Signal Recorder SR-7
Capture ideas, meetings, and observations as voice recordings
$7.99 · In-app purchases
PRICE
$7.99
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 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.
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 Signal Recorder SR-7: map the core Productivity 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 tagging and categorization features.
Assumption to check: Users find it difficult to organize recordings effectively.
Validate with people who use this workflow before building.
Hypothesis 2
Add multiple sharing options, including social media.
Assumption to check: Limited sharing options for recordings.
Validate with people who use this workflow before building.
Hypothesis 3
Provide a variety of quality settings for different needs.
Assumption to check: Recording quality settings are not flexible.
Validate with people who use this workflow before building.
Hypothesis 4
Ensure thorough testing and debugging of playback functionality.
Assumption to check: Some users report bugs with playback.
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
Capture ideas, meetings, and observations as voice recordings. SR-7 transcribes them on your device and generates AI titles and summaries — so every recording becomes something you can search, skim, and build on. Everything stays on your hardware. RECORD High-fidelity audio recording with pause and resume. A physics-based reel-to-reel visualisation and live waveform confirm that nothing is lost. TRANSCRIBE — ON-DEVICE Speech-to-text powered by the Apple Speech framework, entirely on your device. Multiple languages. No network connection required, no cloud processing, no waiting. AI TITLES & SUMMARIES FoundationModels generates descriptive titles and concise summaries locally on Apple Silicon. Every recording becomes searchable and skimmable — no cloud AI, no data leaving your machine. ORGANIZE Group recordings into projects. Drag-and-drop reordering keeps your library structured. Star important recordings for quick access. FULL-TEXT SEARCH Search across recording names, titles, summaries, and full transcription text. Find any moment in any recording. ICLOUD SYNC Recordings, transcriptions, and metadata synchronize across Mac, iPad, and iPhone via CloudKit. Pick up wherever you left off. IMPORT FROM ANY RECORDER On Mac: Bring audio from field recorders, phones, or USB drives via drag-and-drop or the Import menu. Supports WAV, AIFF, MP3, M4A, AAC, CAF, FLAC, and ALAC. Works as a companion app for the teenage engineering TP-7 and similar hardware. MARKDOWN EXPORT (macOS) On Mac: Auto-export recordings as Markdown files with YAML front matter on MacOS. Integrates with Obsidian and any Markdown-based note system. AI AGENT INTEGRATION (macOS) On Mac: A built-in MCP server exposes your recordings to AI tools and agents running on your Mac. Search your archive, extract action items, or generate drafts from voice notes — on your terms. PRIVACY BY DESIGN No accounts. No telemetry. No subscription. All recording, transcription, and AI processing happens on your device. Your recordings are never uploaded to our servers.
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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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
@react-navigation/native
react-native-audio
zustand
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.
