Trello, LightShot, Greenshot, Figma, Snipping Tool, ShareX, Flameshot, ClickUp, FastStone Capture, Commenty, Monosnap, BugHerd, Mantis Bug Tracker, Zenkit, Zeplin, Bugzilla, Quire, puush, Usersnap, Userback, Timeline.io, Request Tracker, Ksnip, Gleap, Nolt, Heartcount, FogBugz, MarkUp.io, ScreenCloud, Scrapbox, The Bug Genie, uBugtrack, Moqhub, Feedback by Pixelic, Lavagna, Droplr, Frontosaur, BugReplay, Ybug, Pangolin, Loop Feedback, FeaturePeek, MeetMonocle, qTrace, JBlitzPaint, Buglog, Lean Testing, Juntoo, Bugyard, Flowcast, Cereo, Zinputs, DebugMe are some alternatives to Not8.