The 3.0 version of AmpliTube for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this Mac application is IK Multimedia. 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. AmpliTube for Mac relates to Audio & Video Tools.
From the developer:
AmpliTube... The most popular guitar amp and effects modeling software raises the standard to an unprecedented level of high-quality emulation and extreme flexibility, for crafting the ultimate guitar tone. 14 Preamp and 14 EQ models 7 Power-Amp models 16 Cabinet models 6 Microphone models 21 Stomp Effect models 11 Rack Effect models High-precision Tuner 2 Guitar rig chains Plug-In and Standalone version
You may want to check out more software for Mac, such as AmpliTube 4, which might be similar to AmpliTube.