ON X vs GoHunt hunt planner data differences

[Torrey in Tahoe]

I've been using ONx and go hunt hunt planners for the upcoming draw and seeing a lot of different numbers for the same searches. Different draw odds and success rates. One explanation is that go hunt has access to more data and private land info but a lot of these areas I'm looking at are completely public and offer few tags. Should be the same numbers. Any insights on this? Thanks.