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
AudioBuffer
AudioBuffer runs a continuous rolling audio buffer in the background - so when something cool happens, you can still save it
$2.99
PRICE
$2.99
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.
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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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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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 AudioBuffer: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
AudioBuffer runs a continuous rolling audio buffer in the background - so when something cool happens, you can still save it. Just enable buffering, go about your day, and reopen the app whenever to save the recent past. • Retroactive recording - Save audio that already happened. No need to recreate the moment. • Configurable buffer - Choose how far back to reach: 15 seconds to 5 minutes. • Clip editor - Trim your saved clips with a visual waveform, drag handles to set in/out points. • Clip management - Browse, rename, and delete clips from your collection. • Sharing - Export clips individually or in a batch via Airdrop, Message, Files, & more. • Normalization - Use the magic wand button to normalize a clip to a custom dB level • Custom naming - Set filename prefix and naming method. • Live waveform - Visual feedback for incoming audio. • Dark, Light, or System appearance - Looks right in any environment. • No cloud, no accounts - All recordings stay private on your device. Only you can listen & share.
Written user reviews are not shown here. Check current App Store reviews >
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 more diverse effects and customization options.
Assumption to check: Limited audio effects compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate sharing features for easier distribution.
Assumption to check: No option to share audio directly from the app.
Validate with people who use this workflow before building.
Hypothesis 3
Implement ratings and user feedback for continuous improvement.
Assumption to check: Lack of user feedback mechanisms.
Validate with people who use this workflow before building.
Hypothesis 4
Allow offline functionality for audio edits.
Assumption to check: No offline capabilities for audio processing.
Validate with people who use this workflow before building.
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
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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.
