The best replacement for tango is skype.

The best alternatives to tango are rated as following:
★★★★★  skype
★★★★  salsa
★★★  facetime
★★  argentine tango
★★  fring
★★  oovoo
★★  twist
★★  chance
★★  qik
★★  viber
★★  skype android
★  phobos
★  whatsapp
★  tango
★  milonga
★  salve
★  shadow evelynn
★  a50
★  hangout
  american tango
  glide
  samba
  chance i love new york
  ballroom tango
  hangouts
  fanta
  tango plus
  flamenco
  waltz
  wechat
  flex air canada
  astro a50
  voxer
  white boy

Your alternative for tango is not listed? Suggest!
Speaking about tango, one probably shouldn't forget about flavio.

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



Google Trends

Scale is based on the average worldwide traffic of tango in all years. Click on graph for more.
tango
skype
salsa