Songwriter's Calculator

4-track music theory recording

$4.99 · In‑App Purchases · Designed for iPad. Not verified for macOS.

The always improving music application. From theory to recording, SWC is your one-stop app. Songwriter's Calculator Version 3.4.2 Our most capable version yet. Build demos faster than ever before on everything from iPhone Mini to iPad Pro. We happily welcome user feedback and suggestions for features. Help us sculpt the perfect music app. TUNER A pro-grade chromatic tuner with LED segments and a pitch-history strip. Guitar, bass, ukulele, violin, and chromatic, with an adjustable A4 reference. Built to get you from tap to tuned as fast as anything out there. IDENTIFY Build any chord and see it on piano and guitar at once, then hear it back with real instrument sounds. Don't know the chord's name? Just tap the notes on the piano or the fretboard and we'll name it. Or strum your chord and let SWC try to identify it. Includes 30 solo styles with scale overlays on the fretboard. CREATE Add the chords you found and we'll work out your likely key, then show you the chords, progressions, and scales that go with it. Everything you need to demystify the song stuck in your head. RECORD This is the one we obsessed over and will continue to improve for the foreseeable future. We put serious work into the noise cancellation and latency so multitrack recording just works, with wired headphones, AirPods, or no headphones at all. On the rare take where timing drifts, the nudge tool slides it back into place. Use our novel Key/Chord Guesser to estimate your key and chords from a recorded take. Assign that key to your demo and the fun starts: clickable chords and notes, right in your key. Play and record them with high-quality Upright Piano, Nylon-String Guitar, Electric Organ, Synth Strings, Xylophone, and a full drum kit. Or build drums and melody via sequencer.

  • 5.0
    out of 5
    4 Ratings

- Added capability to adjust painted tracks for drums and other sequenced instruments. - Added minimize function to instrument UI. - Significant tab-to-tab switching performance improvements. - Painted tracks now grade how well they align with grid.

The developer, SampaTek Labs LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    SampaTek Labs LLC
    Size
    370.2 MB
    Category
    Music
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    • Full Unlock $4.99
    • Big Tip $4.99
    • Small Tip $0.99
    Copyright
    © 2026 SampaTek Labs LLC