inTone | Keys turns your computer into a keyboard kingdom. And you will be the king! inTone | Keys is available in two versions - Express and Pro. If you are just starting with computer audio processing, you can use the affordable inTone Express. The full potential of keyboard performances can be utilized only in inTone Pro.

Express Version ($ 89):* 4 effect chains,* 4 software instruments* 8 effects included
Pro version ($ 149):
* 8 instrument slots
* 8 software instruments
* 36 effects included
* ReWire connection - allows you to add ReWire applications to your setup.
* Simultaneous Record & Play, so you can layer your recordings.
* Records many file formats on Mac - AAC, Apple Lossless etc.
* More layers and MIDI connections

Limitations:
* Program saving disabled
* Playlist saving disabled
* Sound clicks every 5 seconds in all the outputs and in the recorded files

The license of this software is Free Trial Software, the price is $149.00, you can free download and get a free trial.