DrumComputer vs Hydrogen

DrumComputer is a synthetic drum instrument that combines synthesis, modulation, sequencing, randomizers, and sample import. Its eight sound engines each layer a resonator, a wavetable or analogue oscillator, and a resynth or sampler. The 16-step sequencer includes probability, rolls, step delay, swing, humanize, pattern generation, and remixing or fills. Effects include a filter, compressor, overdrive, and room and hall send reverbs. The desktop version supports MIDI file drag and drop plus multiple audio and MIDI outputs. It runs on macOS 10.13 or later and Windows 7 or later, with 64-bit versions for Intel and Apple Silicon. The iPad version requires iPadOS 17.6 or later and supports standalone and AUv3 operation, MIDI export, Ableton Link, MIDI Learn, host automation, and preset iCloud sync. DrumComputer costs $129, paid once as a download. A demo is available, but restrictions include a timeout after 30 minutes / 30 days and disabled saving and export. A Claude Desktop extension can create sounds from text prompts and requires the full version.

Hydrogen is a drum sequencer and sample-based synthesizer for pattern-based rhythm programming, songwriting, or use with an external MIDI keyboard or sequencer. Its sequencer supports unlimited patterns that can be chained into songs. The pattern editor adjusts per-note properties such as velocity and pan, and humanization functions cover velocity, timing, pitch, and swing. Hydrogen imports WAV, AU, AIFF, and FLAC samples and provides downloadable drumkits through a sound library manager. It supports MIDI and OSC automation, time-stretching, and pitch shifting. Audio driver support includes JACK, ALSA, PortAudio, and OSS; exports include WAV, AIFF, FLAC, OGG, MIDI, and LilyPond. Hydrogen is free under GPLv2+ and runs on Linux, Windows, and macOS. Listed Windows downloads support Vista and later, while the current macOS release supports 10.14 and later. The project describes use for home practice, studio work, and live performance. Its FAQ says there are no current plans for an LV2 plugin version.