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
Mp3 Recorder Pro: Notes,Memos
Mp3 recorder Pro turns your iphone into a High quality audio recorder, mp3 record gives you facility to record industry standard Mp3 recording
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
121 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 Mp3 Recorder Pro: Notes,Memos: 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
Competitive pricing with generous free tier
Assumption to check: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Focus on most-requested features first
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Optimize for 60fps, fast load times
Assumption to check: Poor performance
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
Mp3 recorder Pro turns your iphone into a High quality audio recorder, mp3 record gives you facility to record industry standard Mp3 recording It is the best mp3 recorder to record your business meetings,agenda,college notes,voice memo,songs. ●● Recording ●● ● One touch recording ● Record and playback in the background ● Fast, simple and easy to use ● Simple User Interface ● Pause and resume recordings ● Compressed Mp3 format ● Record for seconds or hours ● Great and High Quality audio recording ● MP3 Audio recording Output Settings ●●●● Supported BitRate ●●●● ● 128 kbps ● 160 kbps ● 192 kbps ● 224 kbps ● 256 kbps ●●●● Supported Input Channel Modes ●●●● ● Stereo ● Mono ● Jsterio ●●●● Supported Sound Quality ●●●● ● Law ● Medium ● High ●●●● Audio Player Features ●●●● ● Adjustable Play Controls √ Fast play √ Medium play √ Slow play √ Forward speed √ Backward speed ●●●● Supported Cloud Drives ●●●● ● Box.Net ● Dropbox ● My disk ● Sugar Sync ●Skydrive ● Webdav ● FTP ●●●● Supported Cloud drives Features ●●●● ● Upload your recordings to different clouds ● Import from clouds ● Export to different Cloud drives ● Download your recordings from different clouds ●●●● Other Supported Features ●●●● ● Email multiple recordings ● Download the file from iTunes ● Save recording to your mac Via iTunes
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
Supabase
RevenueCat
BUILD KIT DIFFICULTY
Starter
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.
