Expert Sleepers has released Crossfade Loop Synth v2.0 which now includes a new GUI and costs $10. The previous version (1.3) is still available and is still free).
New since v1.3:
- All-new GUI [screenshot].
- New 'reverse' and 'alternate' loop modes.
- Amplitude and filter envelopes now ADSR with adjustable shape.
- Added saturation section.
- Increased range of filter cutoff.
- Volume control now has a different response curve.
- NOTE: v2.0 is not compatible with 1.x presets.