Pfizer
DoEnd offers Free Trial, but Issuetrak does not.
DoEnd is designed for Individuals and Small Business.
Issuetrak is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for DoEnd Starts at $4/Month whereas for Issuetrak Starts at $69/User/Month.
Some top alternatives to DoEnd includes Trackboard, Issuetrak, The Bug Squasher, Sentry, Zoho BugTracker, MantisBT, ReportBugz, Bug-Track.com, Disbug and Crash Catch.
Some top alternatives to Issuetrak includes Zendesk Support, Tidio Helpdesk, Freshservice, ManageEngine ServiceDesk Plus, Jira Service Desk, Freshdesk, Zoho Desk, Teamwork Desk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, ReadyDesk, Sitehelpdesk, HESK, Support.cc by 500apps and BoldDesk.