Jaikoz is available in two version , Standard and Pro. The Pro version provides some extra features for power users not available to in the standard edition.
No limit on how many Discogs queries can be made in 24 hours (Limited to 5000 queries per 24 hours in Standard).
Can setup a local MusicBrainz Search Server with no throttling to slow down how often queries can be sent (Limited to 1 query per second in Standard).