Nils Schneider has released Heat Synthesizer for Android, a virtual analogue subtractive synth with full VST integration.

Features:

• Highly optimized realtime sound generation engine with a lot of features even on mobile devices, 3 Oscillators, 2 Filters, 4 Envelopes, FX section and much more.
• Collaborative Preset Manager.
• Full VST integration, Android device can be used as a controller while Heat Synthesizer is running as VST compatible plugin (Windows x86/x64).
• Android Device can send MIDI events to a sequencer.

Sound engine features:

• Up to 32 Voices.
• 3 Oscillators per Voice:
  • Saw & Square / Sine & Triangle / Wavetable / MultiSaw Waveforms.
  • Oscillator 1 with optional FM from Oscillator 2.
• 2 Ring Modulators.
• Noise Generator.
• 4 ADSR Envelopes.
• 3 LFOs:
  • Waveforms: Saw / Square / Sine / Triangle / Sample&Hold with adjustable smoothing.
  • Speed can be optionally synchronized to host VST clock and beat.
  • Speed can be up to 200 Hz.
• 2 Filters:
  • Low-Pass / Band-Pass / High-Pass types with resonance and self-oscillation.
  • Post-Filter Distortion.
  • Smooth routing adjustment between Serial or Parallel signal flow between both filters.
• Arpeggiator / Mini Sequencer:
  • 16 steps with free note selection (2 octaves) and adjustable velocity.
  • Play modes up / down / chord / as played.
  • Synchronized to VST host clock.
• FX:
  • Stereo Delay with VST host synchronization.
  • Chorus.
• 10 Modulation Slots with a high variety of sources and destinations.
• Full smoothing of every parameter change.

Price: $4.00. Available as Demo and Pro version in the Google Play Store.