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
Voice Recorder HD
It is a full featured best voice recorder application with stunning interface for business, audio professional, sound engineer, journalist, lecturer, school/college student and anyone else who needs to manage voice memos
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.1
809 ratings · Top 30%
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 Voice Recorder HD: map the core Business 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
Add trimming and merging functionalities to enhance usability.
Assumption to check: Limited editing features for recordings
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate cloud services for backup and easy access.
Assumption to check: No cloud storage integration
Validate with people who use this workflow before building.
Hypothesis 3
Implement visual waveforms or levels to show audio input.
Assumption to check: Lack of visual feedback during recording
Validate with people who use this workflow before building.
Hypothesis 4
Create folders or tags for better organization of recordings.
Assumption to check: Difficult file management
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
It is a full featured best voice recorder application with stunning interface for business, audio professional, sound engineer, journalist, lecturer, school/college student and anyone else who needs to manage voice memos. "One of the most highly regarded voice recorder apps is Voice Recorder HD by eFusion." - The New York Times Key Features: ・ High quality audio recording ・ Unlimited recording time (Tested up to 21 hours) ・ Background recording (You can open other app while recording) ・ Bluetooth recording ・ Ability to configure audio quality (Low:8KHz, Medium:22.05KHz, Heigh:44.1KHz) ・ Supports any OS(Mac,Windows,Linux, etc) to playback. ・ Share voice memo by email (Up to 10MB size) ・ iCloud sync (iOS 5 and above). ・ Dropbox upload sharing. ・ AirDrop sharing between two iOS devices. ・ Restart recording after interrupt by incoming Phone Call. ・ Transfer audio files to computer(PC/Mac) using USB (iTunes require) ・ Record in mono and stereo (tested with Tascam iM2) ・ Supports external mic to record long distance sound(Tested with iRig Mic). This feature is ideal for sound engineer, vocalist and journalist. ・ Quick and simple to use ・ Universal binary (iPad and iPhone version in a single application). ・ Accessibility support for people with disabilities Extra Features (In App Purchase) ・ Audio Trimming ・ Advance PLAYBACK CONTROLS: Fast, Slow, Rewind, Forward playback buttons ・ M4A CONVERTER: Compress large HQ Audio File(.WAV) into M4A with minimum quality loss. ・ AUDIO BOOST: Very first time Voice Recorder HD is introducing "Audio Boost" feature to App Store. It is the feature to reduce noise and boost intelligibility of speakers who are very distant from the microphone or speaking very softly. You will love to open this gorgeous app every time.
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
Zustand
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expo-av
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.
