DOH1: Synthesizer 303 Bassline

Beats, Synths & Live Loops

Free · Designed for iPad. Not verified for macOS.

Turn your iPhone into a hands-on groovebox for basslines, beats, melodies and evolving electronic music. DOH1 combines a 303-inspired bass synthesizer, drum machine, melodic sequencers, chord tools, atmospheric sound generators and a flexible mixer in one focused music production environment. Build patterns, automate parameters, arrange musical ideas and record your performance as a WAV file. CREATE EXPRESSIVE BASSLINES Design deep bass sounds and classic acid-style sequences. Shape your tone with cutoff, resonance, envelope modulation, decay, accent, slide, drive, tuning and multiple bass models. PROGRAM DRUM PATTERNS Build punchy rhythms with a step-based drum machine. Choose from multiple drum kits and adjust the sound of individual instruments with dedicated controls for tuning, decay, tone, drive and level. SEQUENCE SYNTHS AND CHORDS Create melodies with the polyphonic synthesizer and step sequencer, or play notes using the integrated keyboard. Add chord progressions and arpeggios to develop richer musical ideas. ADD TEXTURE AND MOVEMENT Use pad and ambience sections to create spacious layers, evolving textures and atmospheric backgrounds. The FX section provides additional sound design with filters, delay, reverb, drive, pitch and width controls. AUTOMATE YOUR SOUND Bring patterns to life with parameter automation. Set individual automation speeds and define custom movement ranges for precise control over evolving sounds. BUILD COMPLETE ARRANGEMENTS Create, name and manage up to 32 patterns. Combine them in the Pattern Chain to develop longer arrangements and continuously evolving performances. MIX EVERY ELEMENT Balance your project with dedicated channel controls, volume, panorama, mute, solo, three-band EQ, reverb sends and sidechain ducking. IMPORT YOUR OWN SAMPLES Load short audio files and integrate your own sounds into DOH1 patterns. RECORD AND SHARE Capture your performance as a WAV recording and share or save it through the iOS share menu. DOH1 is designed for electronic musicians, beat makers, producers and sound explorers who want an immediate, tactile way to create music wherever inspiration appears.

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Bug fixes and performance improvements. We’ve also refined the user interface and improved the overall stability of the app.

Version 1.1

The developer, Daniel Andre Olbrich, 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

    Accessibility

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

    Information

    Seller
    • Daniel Andre Olbrich
    Size
    • 6.6 MB
    Category
    • Music
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Olbrich
  • Privacy Policy

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