Microsoft To Do, CherryTree, Microsoft Sticky Notes, Trilium Notes, Org mode, Dendron, Quire, Nimbus Note, Tomboy, QOwnNotes, Turtl, Cryptee, Sticklets, Type Here, Chrome Extension Notepad, Vor Board, gjots2, memosaic, NotePlex, TurboNote for Google Keep, camnote, Conboy, EXtra Voice Recorder, Jottinx, Thinkery, Escriba, Chrome-Notepad are some alternatives to SChecklist.