Patchsynth vs Radio Organ

Patchsynth is a Eurorack-style modular synthesizer for iPhone and iPad — and a place to actually learn how modular synthesis works, one patch cable at a time. Instead of a fixed synth engine with knobs, you build your own instrument by dragging cables between modules: oscillators into filters, envelopes into amplifiers, LFOs wobbling anything you point them at. If you've ever wanted to understand what a Eurorack rig actually does, this is the fastest way in. LEARN BY PATCHING, NOT BY READING 28 hands-on Lessons cover every module, from your first oscillator to full generative patches — some just explain, others build a real patch step-by-step in front of you as you tap "Next." No prior synthesis knowledge required. TRAIN YOUR EAR 15 Challenges hide a patch and play it for you — your job is to rebuild it by ear, with hints if you get stuck. A genuinely fun way to internalize how filters, envelopes, and modulation actually sound. 21 REAL MODULES Oscillator · Filter · VCA · ADSR Envelope · LFO · Noise · Delay · Reverb · Mixer · Sequencer · Arpeggiator · Clock · Attenuverter · Quantizer · Slew Limiter · Sample & Hold · Logic · Ring Modulator · Sampler · Keyboard · Output (with a live oscilloscope) Record your own sounds with the Sampler, or use the built-in factory drum kit. Quantize any CV to a musical scale. Chain multiple clocks for polyrhythms. It's a real modular rig, just without the cables costing $30 each. 70+ FACTORY PATCHES From simple bass and pad sounds to sprawling, 20+ module "flagship" patches — browse them, load them, take them apart to see how they're wired, then make them your own. PLAY IT WITH REAL GEAR Full MIDI support over Bluetooth or USB — plug in any MIDI keyboard or controller and play your patch's Keyboard module directly, no setup beyond pairing. BUILT FOR TOUCH, NOT PORTED FROM DESKTOP Every interaction — dragging cables, turning knobs, panning and zooming a big patch — is designed for a phone screen from the ground up. A dedicated Patch Bay view even gives you a spreadsheet-style matrix of every connection when patches get complex. Undo and redo everything. Save as many patches as you like. No ads, no in-app purchases, no internet connection required — just synthesis.

Radio Organ brings the warm, dusty, and unpredictable character of mid-century broadcast radio straight into your iOS DAW. Part vintage tonewheel organ, part vacuum-tube shortwave receiver, Radio Organ lets you play lush organ chords while sweeping across dynamic AM/FM frequency bands. Tune into crisp, locked-in harmonics or drift out into soft heterodyne squeals, static textures, and warm tube saturation. Whether you're scoring a lofi track, adding vintage warmth to a track, or searching for an inspiring AUv3 instrument for live performance, Radio Organ delivers an unmistakable hardware experience. KEY FEATURES Vintage Tonewheel Engine: 4 harmonic drawbars (16', 8', 4', 2') with selectable Square and Sawtooth waveforms. Dynamic Magic Eye Tuning: Animated EM80 tube visualizer that opens and closes as you hunt for frequency locks. Auto-Scan LFO: Long-press the Magic Eye tube to engage an automatic 12-second frequency sweep across the dial. Tube Saturation & Sag: Dedicated Preamp Gain and Power Amp Sag circuits that react dynamically to your polyphony and playing style. Interactive Spring Reverb Tank: Touch, drag, or strike the visible spring tank on screen for instant spring feedback and physical sound design. Asymmetric Radio Static: Distinct AM Shortwave (left dial) and FM High-Frequency (right dial) static, hum, and heterodyne whine characteristics. Performance Control: Adjustable Key Click, Attack/Release envelopes, Rotary Speaker simulation, Chorus, Vibrato, and Percussion. Full AUv3 & Standalone: Works seamlessly as a standalone instrument or an AUv3 plugin inside GarageBand, AUM, Cubasis, Drambo, and Logic Pro for iPad.