The best replacement for voice search is s voice.

The best alternatives to voice search are rated as following:
★★★★★  s voice
★★★★  voice mate
★★★★  google now
★★★★  vlingo
★★  voice talk
★★  siri
★  voice actions
  voice command

Your alternative for voice search is not listed? Suggest!
Speaking about voice search, one probably shouldn't forget about google.

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



Google Trends

Scale is based on the average worldwide traffic of voice search in all years. Click on graph for more.
voice search
s voice
voice mate