App Overview

SoundLab - Audio Editor icon

SoundLab - Audio Editor

孛 刘 · Music

Bringing desktop-grade audio editing, recording, and on-device AI together, SoundLab is a powerful sound editor that lets you edit audio, clean up speech, separate vocals, and mix up to 16 tracks.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.6
14,374 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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A product spec, screen plans, and build steps for your coding agent.

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What's included19 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.

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.

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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for SoundLab - Audio Editor: 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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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

Implement more advanced editing features like multi-track editing and fine-tuning audio clips.

Assumption to check: Limited audio editing precision compared to desktop software.

Validate with people who use this workflow before building.

Hypothesis 2

Enhance stability and performance during export processes.

Assumption to check: Occasional crashes during export.

Validate with people who use this workflow before building.

Hypothesis 3

Expand support for various audio formats and high-resolution audio.

Assumption to check: Limited audio format support.

Validate with people who use this workflow before building.

Hypothesis 4

Simplify UI and improve accessibility for a better user experience.

Assumption to check: User interface can be cluttered.

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

Bringing desktop-grade audio editing, recording, and on-device AI together, SoundLab is a powerful sound editor that lets you edit audio, clean up speech, separate vocals, and mix up to 16 tracks. SoundLab is more than an audio editor. It is built for the ideas, quick edits, and unexpected creative needs that come up during music and podcast production, so you can start creating anytime, anywhere on your iPhone or iPad. We won't claim SoundLab replaces a desktop DAW. But it is a serious mobile production tool for the moment the idea arrives and you don't want to open a computer — or wait thirty seconds for a desktop DAW to launch. Precise Multitrack Audio Editor • Mix up to 16 tracks with gain, pan, mute, and reordering. • Copy, cut, paste, trim, insert, replace, split, duplicate, join, move, and more—with unlimited undo/redo. • Zoom smoothly for millisecond-level selections. • Loop any range while you work. • Draw non-destructive volume curves for fades and ducking. • Record overdubs directly into your project while monitoring playback. AI Vocal Separator & Vocal Remover Separate vocals and instrumentals, create acapellas, or make backing tracks with the vocal remover. Karaoke Mode preserves fuller accompaniment. AI runs locally: no uploads or server queue. AI Stem Separator Split into four stems—vocals, drums, bass, other—or six with guitar and piano. Preview and balance parts, then export a mix or individual stems. AI Noise Reducer & Audio Enhancer Use AI Noise Reducer on recordings or AI Noise Suppression on selected audio. EQ, compression, de-essing, normalization, amplification, and Bass Boost provide enhancement for voice and music. 25+ Selection-Based Effects Apply 25+ effects to any waveform range, including AI separation and noise suppression, 10-band EQ, Reverb Pro, Tape Delay, Compressor, Change Pitch/Tempo, Fade In/Out, Phaser, Reverse, Silence Remover, and more. Master Effects Master Effects run in real time on the mix bus. Adjust tempo, pitch, reverb, and EQ while previewing, then export alternate versions without changing tracks or clips. Audio Recorder • Quick Recorder: Capture ideas with your chosen input device. • Recording Studio: Monitor your mic, set input gain, use a limiter and reverb, and record over a backing track—with or without it in the saved mix. • Use compatible external microphones and audio interfaces recognized by iOS. Import, Create & Organize • Import from Files, Music Library, other apps, or Wi-Fi; extract audio from video. • Convert text to speech and add, insert, or replace audio in your project. • Sync audio with iCloud; archive and restore projects through iCloud, USB drives, or external storage. • Use Video Composer to mix audio with video and create soundtrack videos. Flexible Export Export AAC, ALAC, MP3, FLAC, or WAV with selectable channels and sample rates, plus high-bitrate and lossless options. Add metadata and cover art in supported formats. Save to Files or iCloud, share, or export a ringtone. SoundLab is perfect for: • Music lovers and independent creators • Podcast and voice-over producers • Music students and teachers • Especially for users who are familiar with Audacity or Audition SoundLab Pro SoundLab Pro unlocks all Pro features. Choose monthly or annual auto-renewing subscriptions or a one-time permanent purchase. All support Family Sharing with up to five other family members. Payment is charged to your Apple Account at confirmation. Free trials convert to paid subscriptions, and subscriptions auto-renew unless canceled at least 24 hours before the current period ends. Manage or cancel in App Store account settings. Terms of Use: https://www.castpeer.biz/agreement.html Privacy Policy: https://www.castpeer.biz/privacy.html Customer Support Contact us in the app: Mine → Contact Us Official website: https://www.soundlabs.app YouTube: https://www.youtube.com/@soundlab-app

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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.

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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.