Multitrack Recorder for iOS


FourTrack: Multitrack Recorder for iOS

Before reading further, see the Important Announcement Regarding Sonoma Products' Sales and Support from July 31, 2022.

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The FourTrack multitrack audio recorder app is a songwriting and practice tool for singers, guitar players, piano players and other musicians who want to capture musical ideas and record songs on their iPhone and iPod touch. Plug in a microphone, arm a track, record, and repeat. FourTrack works with the iPhone built-in microphone, headset microphones, or dock-connecting audio interfaces like Sonoma's StudioJack Mini and GuitarJack Stage 2-in/2-out audio interfaces (recommended). These U.S.-made interfaces connect a wide variety of instruments and microphones to iOS/Mac/Win for the highest quality sound, and offer you the ability to charge your iOS device while using FourTrack, and more. FourTrack also works with compatible third-party audio interfaces. Dropbox Sync allows FourTrack recordings to be backed up to the cloud, emailed to friends, or downloaded on a desktop computer.

  • CD Quality Recording
    CD Quality Recording

    FourTrack works with the built-in mic and headphones, an iPhone headset mic, Sonoma's new GuitarJack Stage and StudioJack Mini audio interfaces (best results), past GuitarJack Model 2 or GuitarJack 2 USB interfaces, and more. Everything in FourTrack is recorded at true 16-bit, 44.1 kHz quality.

  • Touch Controls
    Responsive Touch Controls

    Everything from the multi-touch fader, to the spinnable pan wheel was designed with the iPhone in mind. Slide-to-record makes sure you never accidentally record over that solo.

  • Import and Export
    Import and Export

    Export your recordings by uploading to Dropbox (email from Dropbox), saving to your Desktop with iTunes file sharing, or using AudioCopy 3 to copy your tracks to another app. Import content through email, iTunes file sharing, or by copying from another AudioCopy 3 enabled app.

"Solid, functional, well worth $4.99. Stable, easy to use and useful."


  • Multitrack: 4 tracks plus bounce to record many more tracks

  • Recording quality: 16 bit, 44.1 kHz

  • Calibrated meters: accurately monitor record and playback levels

  • Recording clip lights: ensure input levels do not cause distortion

  • Calibrated faders: accurately adjust playback level of each track

  • Pan control: move tracks from left to right

  • MasterFX: sweeten the sound of your recordings with a compressor-limiter and a 4-band parametric EQ.

  • Timeline: seek to anywhere in your song instantly

  • Shuttle wheel: accurately move within your song

  • Slide-to-Record: prevents over-writing your tracks

  • Latency compensation: accurate to within 1ms

  • Song list: unlimited song count

  • Metronome: maintain a consistent tempo by recording along with real drums (not MIDI). Select a tempo by entering a number or by tapping. Choose from seven sounds.

  • Mixdown: Mixdown directly on the phone, with or without the metronome audio, then WiFi Sync either the mixed WAV file or individual tracks.

  • Input Monitoring: Use FourTrack's settings tool to enable/disable input monitoring. How to use Input Monitoring

  • TaylorEQ: Sonoma Wire Works teamed with Taylor Guitars to create an input EQ for enhancing the FourTrack recordings of Taylor Guitars or any acoustic instrument. Select from a range of Taylor body styles in basic mode, or select the Advanced tab to adjust the 6 band parametric equalizer manually.

  • File Import: 3 ways to import audio into FourTrack include email, iTunes, and AudioCopy/AudioPaste. How to Import into FourTrack

  • File Export: 3 ways to export audio from FourTrack include iTunes, Dropbox Sync, and AudioCopy 3.

  • (New in v7) Playback in Background

  • (New in v7) GuitarTone Song Tool: The same 3 amps and 3 effects from the GuitarTone stand-alone app are now available as the GuitarTone Song Tool in FourTrack. Add-on AmpPacks and PedalPacks purchased in the GuitarTone iOS app are activated in FourTrack and StudioTrack on any device that uses the same iTunes account.* Connect Sonoma's impeccable sounding GuitarJack Model 2 to get 12 more amps and cabs plus 12 more effects free, or buy them as add-ons.

  • (New in v7.1) Dropbox Sync: Upload and store your mixes and projects to your Dropbox account, then share your music by emailing download links to friends.

  • (New in v7.1) AudioCopy 3: Copy and paste audio between other AudioCopy 3 enabled apps.

  • (New in v7.1) Support for GuitarJack Stage and StudioJack Mini.

  • (New in v7.1.3) Enhanced support for GuitarJack Stage, StudioJack Mini, and their predecessors (GuitarJack Model 2 and GuitarJack 2 USB), as well as generic USB audio interfaces.

  • (New in v7.1.4) Added ability to select input channels in GuitarJack Stage, StudioJack Mini, and GuitarJack 2 USB: (channels 1 or 2 for mono recording, and 1+2 for stereo/dual-track).

  • (New in v7.1.4) Fixed minor issue where status bar appeared on top of FourTrack's main screen after closing the About page

  • (New in v7.2) Updated for iOS 10 with several fixes and improvements.

  • (New in v7.3) Added GuitarTone 3 new tube models and re-voiced amps to FourTrack: What's new in the GuitarTone 3 app.

  • (New in v7.3.1) Works with iOS 11, lowered latency (256 frame buffer size down from 512), updated Dropbox to V2, and fixed some crashes.

For more info about these features, see FourTrack's Release Notes in the forum, and the FourTrack Guide.



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FourTrack is no longer available in the AppStore for $4.99.

"DrumCore is so handy and so very easy to use! It's very close to having a live drummer with you."

Learn more about DrumCore
Anthony Gonzalez of M83

"I'm obsessed with this recording app on my iPhone- the Sonoma Wire Works FourTrack. It's like you have a superpowerful studio in your pocket."

Learn more about FourTrack
Trey Anastasio of Phish

"Just tried out Sonoma Wire Works GuitarJack plus the new upgraded FourTrack app. Beautiful crystal clear sparkling audio in iOS!"

Learn more about GuitarJack
Jordan Rudess of Dream Theater

"RiffWorks is an incredible tool to get songs done stupid fast!"

Learn more about RiffWorks
Johnny "Juice" Rosado of Public Enemy