Aalto vs Thorn

Aalto is a semi-modular software synthesizer by Madrona Labs, built around a patchable interface. Its complex oscillator offers FM, timbre, and waveshape controls, calculating sound dynamically rather than using static wavetables. Every voice has a built-in sequencer with independently controllable, patchable rate and offset. Voice modules include a lowpass gate with vactrol emulation and a patchable waveguide or delay whose feedback loop contains a waveshaper and peaking EQ. A state-variable filter provides simultaneous mixable outputs. Aalto runs on macOS and Windows as a plug-in: Mac provides VST and AU installers, while Windows provides VST. There is no standalone app. A free trial is available, but demo mode plays a reminder sound about every minute and disables patch saving. The listed Aalto license costs $99 as a one-time purchase. It permits installation on any number of computers, though simultaneous use requires one license per computer.

Thorn is a software synthesizer for modern electronic music production, available as a 64-bit plugin for Windows and macOS. Its three spectral oscillators shape harmonics and support FM, ring modulation, pulse-width modulation and hard sync. Sixteen-frame spectrum tables provide editable, morphable harmonic sources, while additive spectral synthesis, harmonic filtering and spectral effects form the sound engine. Two analog-modeled multimode filters and nine effects extend sound shaping. Modulation includes three ADSR envelopes, three LFOs and two multistage envelopes. A flexible 16-step arpeggiator outputs MIDI, and a grid-based Glitch sequencer supplies another sequencing method. Plugin Alliance lists more than 600 presets. Thorn runs in VST2, VST3, AU or AAX hosts and is not a standalone application. Listed operating-system support is Windows 10–11 and macOS 13–26, including Intel and Apple Silicon Macs. A 14-day trial is offered; earlier-license owners are quoted a $19 USD upgrade.