What's the best chess program for beginner/intermediate players?

Hello everyone. I am taking a long trip (three weeks) and want to bring chess with me when I go, but chess.com isn't an option. My question is: what chess program will be the best for offline play? I'm a beginner/intermediate player. Price doesn't matter.

For three weeks you should focus on one topic. At 1148 live I think for you that would be basic mating and material patterns so maybe reading that big 5000 tactic book and calculating everything in your head is best for now. 

What device?

@Xilmi I forgot to add it's a Windows laptop.

So what are the best chess programs out there right now? I was going to get Fritz but they have lots of different versions and I'm confused as to which is the best option. Is Fritz good for new players?