Spreadsheets Synth vs AcidGroovebox

The 303 lives between the sheets. Spreadsheets Synth is an acid bass synthesizer with a built-in step sequencer — a cultural product of the band Spreadsheets, tuned to 313K and pointed straight at the dance floor. THE SQUELCH Sawtooth or square through a resonant filter with cutoff, resonance, decay, and accent — from rubbery basslines to screaming acid leads. Add distortion for grit, then send it into orbit with the phaser and delay. THE SEQUENCER Program patterns step by step, set the line looping, and ride the cutoff live. It's an instrument for performing, not just programming. PLAYS WITH YOUR WHOLE RIG • AUv3 plugin — load it as an instrument in GarageBand, AUM, Cubasis, Loopy Pro, and any AUv3 host • Standalone app with background audio • MIDI in and out, including Bluetooth MIDI NO STRINGS No account, no ads, no tracking, no data collected. Just voltage.

A pocket acid machine. 303-style bass, drum machine, lead, a lush pad synth and sample pads: a techno or house track in seconds, with no ads and no connection. Tap the dice and the drums, bass, lead and pads land in key, ready to be mangled. Never touched a synth before? Turn the knobs. You'll get it in 30 seconds. ACID BASS • Cutoff, resonance, env mod, decay, accent and glide • Waveforms: saw, square, triangle, PWM • Step sequencer with slides, accents and note length • Piano panel: the note rings while you press, slide your finger for a glide • Arpeggiator (Pro) DRUM MACHINE • 7 tracks: kick, snare, clap, hats, crash, ride • 3 velocity levels per step and swing, with a choice of which tracks swing (Pro) • Live snare/clap rolls for fills • Double notes, your own samples and custom kits (Pro) ACID LEAD • 3-oscillator paraphonic synth with a snappy filter • Notes per step, chords, harmonic colours and glide • Macros: bite, decay, drive, spread, air, volume • Arpeggiator (Pro) ATMO PAD SYNTH (Pro) • Lay lush chord pads under your set: held chords or short stabs • 12 factory sounds, expressive macros and a full advanced sound editor • Its own sequencer, mixer track and automations HAND-DRAWN AUTOMATIONS (Pro) • Draw curves with your finger on bass, lead and ATMO parameters and watch the knobs move MIXER • Volume, pan and level meters for every track • 4-band EQ on every track and on the master (track EQ in Pro) • The bass ducks under the kick for a punchier, cleaner mix LIVE FX • Hands-on filter on an X/Y matrix • Two assignable LFOs per instrument (Pro) • Assignable reverb and delay (Pro) • 16 or 32-step patterns, A to D switching and full pattern copy (Pro) SAMPLE PADS • 1 pad you can record with the phone mic (3 in Pro) • 3 pads for loading your own sounds (6 in Pro) • Touch pan: where your finger lands sets the pan • Dedicated reverb, delay and beat repeat for the pads YOUR TRACKS STAY YOURS • Save, load, export and import your sets • Bounce your loops to audio to share them • 100% offline: no account, no cloud WHY ACID GROOVEBOX • Zero ads. Actually zero. • No subscription: unlock Pro once, keep it forever • Everything runs on your phone, on a plane or at a festival Home-studio producer, 303 obsessive, techno head or just curious about beatmaking: Acid Groovebox turns an idea into a groove in seconds. Acid Groovebox is built by one independent developer, with no ads and no investors. If you want to support it: unlock Pro and tell your friends.