The best replacement for scratch pro is serato.

The best alternatives to scratch pro are rated as following:
★★★★★  serato
★★  traktor pro
★★  nago evo
★  traktor scratch duo
  serato scratch
  serato scratch live
  serato sl3

Your alternative for scratch pro is not listed? Suggest!
Speaking about scratch pro, one probably shouldn't forget about maya 44.

Other search terms related to scratch pro and their ratings are:
★★★★★ maya 44
You have in mind a companion for scratch pro and it is not yet here? Propose!



Google Trends

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scratch pro
serato
traktor pro