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
Voloco: Vocal Recording Studio
Turn your phone into a professional vocal studio.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
87,269 ratings · Top 5%
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 included18 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 Voloco: Vocal Recording Studio: map the core Music 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
Turn your phone into a professional vocal studio. Whether you're a singer, rapper, content creator, or just love making music, Voloco helps you sound polished and professional. Sing and rap over beats with powerful real-time voice effects and auto vocal tune — all in one easy-to-use recording app. No expensive equipment or complicated software needed. Who is Voloco for? • Singers and vocalists who want to sound their best • Rappers looking for modern voice effects and auto vocal tune • Content creators, YouTubers, and TikTokers who need clean voice recordings • Musicians and producers who want to record vocals while making music • Anyone who wants to make studio-quality songs from their phone Record Studio-Quality Vocals Anywhere Voloco is a mobile vocal studio and audio editor that lets you record, tune, and polish your voice with professional results. Automatically remove background noise, correct pitch in real time, and apply high-quality effects so your recordings sound like they were made in a real studio. You can also record video while using all of Voloco’s vocal effects in real time — perfect for creating content with pro-sounding vocals. Powerful Voice Effects & Auto Vocal Tune Choose from over 50 voice effects across 12 curated packs. From natural auto vocal tune and rich harmonies to creative voice changers, vocoders, and modern rap presets — Voloco gives you everything you need to transform your sound. New: Auto Mix, Auto Master & Auto Lyrics Take your tracks even further with Voloco’s intelligent tools: • Auto Mix automatically balances your vocals against the beat in one tap • Auto Master optimizes loudness, clarity, and balance for release-ready sound • Auto Lyrics helps you generate lyrics from a simple prompt or transcribe what you just recorded Sing & Rap Over Free Beats Access thousands of free, high-quality beats inside the app, including the BeatStars library. Voloco automatically detects the key of the beat so your voice stays perfectly in tune while you sing or rap. You can also import your own beats for free. Easy Vocal Recording & Editing • Record vocals (or video) with real-time effects • Separate vocals from existing songs or videos • Apply voice effects to pre-recorded audio or video • Export clean vocals as WAV or AAC for further mixing Perfect for Content Creators Quickly record professional voice-overs, demos, and podcasts. Or create video content with studio-quality vocals — all in one app. Why Artists Love Voloco With over 70 million downloads, Voloco is one of the most popular singing and recording apps in the world. Whether you're making your first demo or finishing a full track, Voloco gives you pro-level tools in a simple mobile app. Download Voloco today and start creating studio-quality vocals from your phone. Privacy policy: https://voloco.com/privacy Terms and conditions: https://voloco.com/appterms
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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
Offer more free recording time or features in the clone.
Assumption to check: Limited free recording time
Validate with people who use this workflow before building.
Hypothesis 2
Simplify UI for better usability.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Clearer explanations and benefits of subscriptions.
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 4
Expand effects options and allow user-generated effects.
Assumption to check: Limited effects library
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
React Native
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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.
