Immunity CANVAS is described as 'Immunity's CANVAS makes available hundreds of exploits, an automated exploitation system, and a comprehensive, reliable exploit development framework to penetration testers and security professionals worldwide' and is a penetration testing tool in the security & privacy category. There are more than 10 alternatives to Immunity CANVAS for a variety of platforms, including Linux, Windows, Mac, Web-based and Self-Hosted apps. The best Immunity CANVAS alternative is Metasploit. It's not free, so if you're looking for a free alternative, you could try Metasploit or PhoneSploit Pro. Other great apps like Immunity CANVAS are mimikatz, Social-Engineer Toolkit, ZoomEye and Exploit Pack.