Acid Groovebox

🎛️ Acid Groovebox — the pocket Acid house machine

Make acid, techno and house beats anywhere. Acid Groovebox brings together a 303-inspired bassline, a punchy drum machine, sample pads and a paraphonic acid lead in one simple app, built for jamming — and best of all, no ads!

🔊 ACID BASS (303-style)

• Cutoff, resonance, env mod, decay, accent & glide

• Waveforms: saw, square, triangle, PWM

• Step sequencer with slides, accents and note length

Not sure what these mean? No worries — just play with the knobs and you'll get it in no time!

🥁 DRUM MACHINE

• 7 tracks: kick, snare, clap, hi-hats, crash, ride

• 3 velocity levels per step, swing

• Double notes (pro)

• Load your own samples & build custom kits (pro)

• Live snare/clap rolls for fills

🎹 ACID LEAD

• Paraphonic 3-oscillator synth with a snappy filter

• Per-step notes, chords, harmonic flavors & glide

• Macros: bite, decay, drive, spread, air, volume

🎚️ JAM WITH LIVE EFFECTS

• Hands-on filter with an X/Y pad

• Two assignable LFOs per instrument for dynamic variations

• Assignable reverb and delay (pro)

• Build 12- or 32-step patterns (pro), switch between patterns A and B (pro)

🎤 SAMPLE PADS

• 1 pad to record with your phone's mic (3 in pro mode)

• 3 pads to load your own samples (6 in pro mode)

• Dedicated pad reverb, delay and beat repeat

🎲 INSTANT INSPIRATION

• One tap on the dice instantly generates a full set with drums, bass and lead — all in key

💾 AND OF COURSE

• Save, load, export and import your sets

• Export your loops as audio to share them

• 100% offline — no account, no ads!

Whether you're a bedroom producer, a 303 lover, a techno head or just curious about beatmaking, Acid Groovebox turns an idea into an acid groove in seconds.

Acid Groovebox is an indie developer project, with no ads. To support me, unlock pro mode and spread the word to your friends!