AcidGroovebox vs SimpleSampler

A pocket acid machine. 303-style bass, drum machine, lead and sample pads: a techno or house track in seconds, with no ads and no connection. Tap the dice and the drums, bass and lead 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 (pro), PWM (pro) • Step sequencer with slides, accents and note length DRUM MACHINE • 7 tracks: kick, snare, clap, hats, crash, ride • 3 velocity levels per step and swing • 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 LIVE FX • Hands-on filter on an X/Y matrix • Two assignable LFOs per instrument (pro) • Assignable reverb and delay (pro) • 12 or 32-step patterns, A/B switching (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) • Dedicated reverb, delay and beat repeat for the pads (pro) 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.

SimpleSampler turns any sound into an instrument. Record a piano note, a clap, your voice or a glass you tap with a spoon. The app detects the pitch and puts the sound on a keyboard, so you can play it across several octaves right away. RECORDING Press record and the app shows you what it hears before the take starts. The recording begins with your first sound, not with the button press, so there is no silence or click at the start. If you don't like the take, cancel it and nothing is saved. KEYBOARD AND DRUM PADS The keyboard shows two octaves at a time and scrolls. It is fully multitouch, so chords and glissandos work. Eight drum pads hold eight different samples for beats. Pitch and length are independent: higher notes last as long as lower ones. If you prefer the classic tape sound, where higher also means faster, switch it on with one tap. LOOP STATION Tap a loop slot, play something and tap again to close the loop. Every new layer stays in time with the first one. You can also record a loop straight from the microphone. Your loops are still there the next time you open the app. RECORD YOUR SONG One button records everything you play: keyboard, pads and loops. It records what the app outputs, not what the microphone picks up, so the result is clean. Share it via AirDrop, Messages or any other app. PORTRAIT AND LANDSCAPE On iPhone, hold it upright to record and edit samples and turn it sideways to play. On iPad you get pads and keyboard on one screen. No account, no subscription, no tracking. Your recordings stay on your device unless you share them.