The best replacement for camtasia is captivate.

The best alternatives to camtasia are rated as following:
★★★★★  captivate
★★★★  fraps
★★★  screenflow
★★★  camstudio
★★★  snagit
★★  articulate
★★  jing
★  sony vegas
★  hypercam
★  windows movie maker
★  bandicam
★  dxtory
  presenter
  adobe captivate
  ishowu
  storyline
  screenium
  ispring pro
  premiere
  captivate 5
  screen flow
  powerdirector
  wink
  final cut pro
  imovie
  robodemo

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

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



Google Trends

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camtasia
captivate
fraps