Difference between fritz 13 engine and fun for fritz 13 engine

I downloaded a fun for fritz 13 pretty inexpensively from amawhatever and it says it has a fritz 13se engine in it. Anybody know what the se stands for and is it the same as the regular fritz 13. After playing and looking at it they seem identical as I have had fritz 13 in the past. (In terms of engines)

I was just interested in what is probably the same:

http://shop.chessbase.com/en/products/fritz_for_fun_13_english

Can you recommend it? How would you rate its strength?

I'm not familiar with the "se" version.  I have the regular Fritz 13 but I use the latest Stockfish engine with it for post-game analysis, not because it's necessarily stronger, but because it's free.  At my strength, it doesn't matter which engine is stronger.

Fritz SE is the single processor version. My copy of Komodo came with Deep Fritz 13 and Fritz SE. Deep Fritz runs as many processors as I specify, while the SE version can only run one.