Perc8
Drum synth, sequencer, FX
$9.99 · Designed for iPad. Not verified for macOS.
40 factory voices, five FM engines, a 16 × 16 Digital Perc engine, Drive Match, and Block-based arrangements makes Perc8 deeper from sound design to full tracks.
Perc8 is a professional drum synthesizer and step sequencer designed for techno, acid, industrial, and experimental electronic music. Build anything from tight loops to complete arrangements with eight independent synthesizer voices, deep per-step control, flexible effects, and a dedicated master bus.
SOUND DESIGN
Choose from a broad collection of kick, snare, clap, cymbal, hat, percussion, noise, tonal, and synth engines. Five purpose-built FM engines cover FM Kick, Snare, Hat, Perc, and Tone. Digital Perc adds a 16 × 16 WAVE × SHAPE sound space for animated digital percussion.
Start quickly with 40 curated factory voice presets, then reshape them through Perc8’s complete synthesis and processing architecture.
Every voice provides eight expressive engine macros plus resonant filters, EQ, drive, amplitude shaping, dual LFOs, effects sends, and output routing. Optional Drive Match on each voice and the master bus helps you judge saturation character without added loudness dominating the comparison.
SEQUENCING & ARRANGING
Program beats with probability, trigger conditions, fills, retriggering, ties, variable pattern lengths, and up to 16 parameter locks per step. Arrange pattern entries into Blocks, set repeats and Fill behavior, mute voices independently per entry, and draw long-form parameter automation with multiple interpolation shapes across the chain.
ADAPTIVE WORKSPACE
Perc8 adapts its editor to the available space. Work quickly in the compact iPhone and AUv3 layouts, or use dedicated full-screen Pattern, Chain, FX, and Master workspaces on iPad. Controls remain direct and touch-focused across standalone and hosted use.
EFFECTS & MIXING
Process voices through a dub-style stereo delay, algorithmic reverb, and chorus/flanger modulation, all with sequencer automation. Mix all eight voices with level, pan, mute, solo, EQ, sends, and flexible bus routing. Finish the kit with stereo image controls, master EQ, drive, Drive Match, trim, and limiting.
STANDALONE & AUV3
Use Perc8 as a standalone instrument or as an AUv3 plug-in in hosts such as AUM. Route voices to individual outputs, synchronize to host transport, automate parameters, control voices over MIDI, and save complete projects, kits, or individual voice presets.
KEY FEATURES
• Eight independent drum-synth voices
• FM Kick, FM Snare, FM Hat, FM Perc, and FM Tone
• 16 × 16 Digital Perc WAVE × SHAPE sound space
• Broad analog-inspired, digital, metallic, noise, and tonal engine collection
• Eight musical macros per engine
• Resonant filters, EQ, drive, amplitude shaping, and dual LFOs per voice
• Optional voice and master Drive Match
• Probability, conditions, fills, ties, retriggering, and up to 16 parameter locks per step
• Block-based arrangements, per-entry voice mutes, and timeline automation
• Delay, reverb, and chorus/flanger effects
• Eight-channel mixer and complete master bus
• Multiple audio outputs and MIDI routing
• Standalone and AUv3 operation
• Adaptive iPhone, iPad, and hosted layouts
MANUAL & TUTORIALS
See the Help page in Perc8 for the full manual and guided workflows, or visit terrarum.net/perc8.html.
Ratings & Reviews
Perc8 1.5.0 is a major sound and workflow update.
NEW SOUNDS
• 40 curated factory voice presets
• Five FM engines: FM Kick, FM Snare, FM Hat, FM Perc, and FM Tone
• Digital Perc with a 16 × 16 WAVE × SHAPE sound space
• More distinct Carbon, Copper, and Iron cymbal families
ARRANGEMENT
• Organize pattern entries into Blocks for complete arrangements
• Set repeats, Fill, and per-voice mutes independently for each entry
• Draw long-form parameter automation across the chain
WORKSPACE
• Dedicated full-screen Pattern, Chain, FX, and Master workspaces on iPad
• Faster navigation, clearer state labels, and more consistent editing controls
MIXING AND EFFECTS
• Optional Drive Match for every voice and the master bus
• Improved stereo delay width and sample-rate-consistent reverb timing
COMPATIBILITY
• Existing projects and saved AU states continue to load
• Engine revisions remain preserved for compatible playback
The developer, Joe Topjian, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Joe Topjian
- Size
- 21.9 MB
- Category
- Music
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Joe Topjian
