The best replacement for whatsapp is viber.

The best alternatives to whatsapp are rated as following:
★★★★★  viber
★★★★★  kik
★★★★  line
★★★  skype
★★★  imessage
★★★  bbm
★★★  instagram
★★  hangouts
★★  telegram
★★  sms
★★  facebook
★★  snapchat
★  pingchat
★  twitter
★  groupme
★  google voice
★  textfree
  wechat
  kakaotalk
  textplus
  whatsup
  ping
  whatsapp plus
  tango
  yahoo messenger
  facebook messenger
  text message
  kakao

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

Other search terms related to whatsapp and their ratings are:
★★★★★ sms
★★★★ bluestacks
★★★ facebook
★★★ last seen
★★ free calls
★ voice call
★ call
★ emoticons for iphone
You have in mind a companion for whatsapp and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of whatsapp in all years. Click on graph for more.
whatsapp
viber
kik