Download of powertabeditor 2.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software lies within Audio & Video Tools, more precisely Music Production.
The actual developer of this free software for Mac is Power Tab Community. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Power Tab Editor is a guitar tablature editor for Mac. With this application, you can create notes, adjust octaves, and store lyrics. The program provides standard music notation and symbols. In addition, it features popular tablature symbols. The tablature scores supports being printed out and played back via MIDI.
You may want to check out more Mac applications, such as V-Synth Librarian, Mandala Virtual Brain or Bupp!!, which might be similar to powertabeditor.