Question What are the differences between the Voice Jam Products

There 3 different levels of Voice Jam app. Please refer to the list below for a comparison of these apps: 
  Voice Jam Studio VoiceJam VoiceJam Lite
Pro Vocal Effects 50 3 3 in app purchase
Looper 4 independent track 1 track 1 track
Loop time up to 8 minutes per track Up to 60 seconds Up to 60 seconds
Audio performance recorder Yes Yes Yes
Share to SoundCloud Yes Yes Yes
Metronome Yes Yes No
Mixer Yes Limited No
Video performance recorder Yes No No
Share to YouTube Yes No No
Built for the iPad Yes No No
AudioBus support Yes No No
Midi support Yes No No
Inter-App-Audio support Yes No No
Multiple level of undo Yes No No
Built for professionals Yes No No
Price $19.99   $6.99 $0.99