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Version 1.0 Available

Record anywhere.
Mix anywhere.
Be heard anywhere.

Stone is an offline-first multitrack recording, mixing, noise cleanup, and lyric-writing mobile app built for street performers, buskers, and songwriters.

Get the App Explore Features
Timeline
Street Demo
Vocals 1 Vocal
Volume
100%
Mute Solo Cleaned
Cleaned offline Delete
Acoustic Guitar Guitar
Volume
80%
Mute Solo Clean
Ready to clean Delete
Projects
Record
Timeline
Mixer
Lyrics
More
Designed for Real Life

Most DAWs are built for quiet studios.
Stone is built for the street.

Studio digital audio workstations assume you have endless power, unlimited hard drive space, stable Wi-Fi, and a silent environment. When you are busking in a subway tunnel or writing a lyric on a windy rooftop, those assumptions fail. Stone is built to survive.

Scenario Traditional Mobile DAWs Stone Multitrack App
Battery Level Drops to 10% Keeps processing at max rate, causing sudden phone shutdowns. ✓ Scales sample rate to 24kHz, saving battery automatically.
App Crashes Unexpectedly Loses the last unsaved take and projects corruption risks. ✓ SQLite-backed database flushes updates every 15 seconds.
No Internet Connection Blocks startups, demands login credentials, or fails syncing. ✓ 100% offline. No signup. No servers. Just hit record.
Noisy Street / Subway Captures low-end rumble, sirens, echoes, and passing traffic. ✓ Built-in offline FFmpeg DSP filters isolate vocals and hum.
Feature Highlights

Compact DAW. Heavyweight DSP.

Everything you need to capture inspiration, polish tracks, and share finished mixes right from the field.

🎙️

Multitrack Recording

Layer vocals, acoustic guitar, harmonies, percussion, and spoken intros. Record up to 8 layers with individual volume and stereo pan controls.

⚡

Offline-First DSP Cleanup

Reduce wind noise, remove electrical hum, and trim silence. Powered by clean, background FFmpeg processing running fully locally.

🎛️

Make It Sound Better

One-tap auto-mixing that balances volume levels and pans harmony lines wide to create instant spatial clarity.

📝

Lyric Notebook

Write lyrics, note chords, and map song structure side-by-side with your multitrack mixer, debounced and saved in real-time.

🔒

No Login Required

We do not collect your email, audio data, or usage metrics. Your files stay in your device container, secured by sandbox rules.

💾

Hardware Aware

Active battery level monitors and disk space safety systems alert you when memory is low and queues heavy processing.

Data Safety

Your projects are safe from OS migrations and low batteries.

Mobile operating systems regularly cycle container IDs during system upgrades, which breaks typical absolute paths in local databases. Stone solves this with automatic path prefix healing on boot.

Whether your container moves or you background the app mid-mix, our SQLite repository heals internal paths and preserves your takes automatically.

Learn the Architecture

🛡️ Data Protection Checklist

  • ✓ Sandbox Enforcer: Active security checks block file actions outside the app root directory.
  • ✓ Proactive Backups: Single-tap project folder duplication saves timestamped local copies.
  • ✓ 15s Ticker Auto-Save: Database updates flush every 15 seconds to prevent loss during OS memory pressure.
Interactive Mixer

Hear the "Make It Sound Better" Auto-Mix

Simulate how Stone automatically balances volumes and shifts panning to give your recordings professional space.

🎤 Lead Vocals Center
Volume:
Stereo Pan:
L
R
🎸 Acoustic Guitar Center
Volume:
Stereo Pan:
L
R
✨ Harmonies Center
Volume:
Stereo Pan:
L
R
For Buskers

Outdoor Street Performers

Noisy environments, outdoor crowds, and zero access to wall chargers can make recording challenging. Stone solves these constraints.

  • ✓ Denoise street rumble offline.
  • ✓ Save battery power during recording.
  • ✓ Clean up unused takes with one tap.
Explore Busking Solutions →
For Songwriters

Acoustic Songwriters

Do not let passwords or setup screens break your flow. Stone starts recording in under 2 seconds, with built-in templates.

  • ✓ Zero login required to use.
  • ✓ Side-by-side lyrics & chord pad.
  • ✓ Quickly overlay audio vocals & chords.
Explore Songwriting Workflow →
Visuals

App Walkthrough & Interface

Explore the clean, high-contrast user interfaces designed to be highly visible even in direct sunlight.

Stone multitrack library interface
Project Timeline & Waveform
Stone app auto mixing console screen
Auto-Mix Console
📝

Lyric Pad

Write lyrics, chord structure, and arrange song blocks seamlessly with auto-saved buffers.

Autosave Lyric Notebook
⚙️

OS Integrations

Fast local M4A, WAV, and MP3 exports, linked directly to native sharing widgets.

Export & Native Share
Get Started

Start recording high-quality music anywhere today.

Stone is in active release. Download the installation packages for Android or test iOS builds through the development portal.

Download for Mobile Check Roadmap

Compatible with Android 8.0+ and iOS 14.0+. No accounts. No tracking.