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
Audio Notebook Pocket
All-Day Audio Recorder, 2x Playback, and Note-Keeping System.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
55 ratings · Top 15%
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/
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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.
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 Audio Notebook Pocket: 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
Full offline with background sync
Assumption to check: No offline mode
Validate with people who use this workflow before building.
Hypothesis 2
Real-time sync with conflict resolution UI
Assumption to check: Sync issues
Validate with people who use this workflow before building.
Hypothesis 3
Minimal design, progressive feature disclosure
Assumption to check: Feature bloat
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
All-Day Audio Recorder, 2x Playback, and Note-Keeping System. Audio Notebook is perfect for: - Students: To record all your lectures, and take notes on all your classes, - Professionals: For every meeting and interview, - Everyone else: To capture your thoughts and ideas for all of life's projects. CRYSTAL CLEAR ALL-DAY RECORDING Stop struggling to take notes while keeping up with discussions. Audio Notebook captures everything that is said, so you don't have to worry about missing a thing. Record through your whole day and take notes at the same time. Edit and add to your notes while recording or reviewing later. When you're done, easily email your notes and recordings with a tap. Leave your laptop behind. Stay on top of all your classes and meetings with just your iPhone. FAST 2x PLAYBACK Reviews are a snap: Audio Notebook lets you breeze through recordings with up to 2x playback speed. Rewind by 5 seconds with just a tap, and capture every point with perfect recall. EASY DATA ACCESS It's your data: Copy all your notes and audio to your Mac or PC with iTunes File Sharing at any time. This is great for extra backups or sharing with others. It even works wirelessly over WiFi. CUSTOM-COLORED ORGANIZATION Color code your notes with multiple categories to find them easily and stay on top of all your projects. EVERYTHING YOU NEED TO TAKE GREAT NOTES Integrated Text Editor: - Text notes with built-in Audio Recorder - Works great in both landscape and portrait mode - Large, legible font - Copy & Paste - Automatic spell check Flexible Note Organizer: - Multiple color-coded categories to stay organized - Filter notes by category, to quickly find the one you want - Sort by name or by date - Customizable category names - Share notes and recordings via Email High Quality Audio Recorder: - Variable play speed: 1x, 1.5x, or 2x - Instant seek - Quick skip by 5 second increments - Unlimited audio recording time - High quality MPEG-4 audio: An hour takes approximately 12MB - Record and take notes simultaneously - Pause and continue recording as many times as needed
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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
Supabase
Expo
RevenueCat
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.
