Assuming you mean “regular” DJ software, see below list. If you mean an alternative for Ableton Live (which I wouldn’t call DJ software but music creation software) then others have to pitch in.
The major six in DJ software are (in no particular order):
* Traktor
* Serato
* Virtual DJ
* RekordBox DJ
* DJay Pro (Mac only)
* Mixvibes Cross
They all do BPM sync well, provided the beat grids are ok. Traktor can do beat grids well but really only for tight electronic drums. Serato and Cross do very well with flexibel beat grids, the others are closer to Serato/Cross than to Traktor.
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