Jot+ Notes is described as 'is the premiere note manager for Microsoft Windows' and is an app in the Office & Productivity category. There are more than 100 alternatives to Jot+ Notes for a variety of platforms, including Windows, Mac, Android, Online / Web-based and Linux. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Microsoft OneNote. Other great apps like Jot+ Notes are Evernote (Freemium), Simplenote (Free, Open Source), CherryTree (Free, Open Source) and NoteLedge (Paid).
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor.