The best replacement for tasker is locale.

The best alternatives to tasker are rated as following:
★★★★★  locale
★★★★  senn
★★★  llama
★★  automateit
★★  automagic
★★  juice defender
★★  trigger
★  setting profiles
★  condi
★  profile scheduler
★  automated device
★  smart actions
★  phoneweaver
★  onx
  locale android
  macrodroid
  timeriffic
  multitasker
  atooma
  nfc task launcher

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

Other search terms related to tasker and their ratings are:
★★★★★ autovoice
★★★★★ zooper
★★★★ google now
★★ greenify
★ minimalistic text
★ nfc
★ nfc tags
nfc task launcher
You have in mind a companion for tasker and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of tasker in all years. Click on graph for more.
tasker
locale
senn