Encryptic is described as 'open-source note-taking application heavily focused on encryption. When you start writing, no one will know what you write except for you. We don’t know and we don’t want to know. That’s between you and your work' and is a Note-taking Tool in the Office & Productivity category. There are more than 50 alternatives to Encryptic for a variety of platforms, including Windows, Mac, Online / Web-based, Android and iPhone. Most alternatives are Note-taking , Todo List Managers and Task Management Tools. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Notion or Standard Notes. Other great apps like Encryptic are Google Keep (Free), Microsoft OneNote (Freemium), Evernote (Freemium) and Simplenote (Free, Open Source).
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.