Cost / License
- Freemium
- Open Source (AGPL-3.0)
Application types
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted




acreom is described as 'Actionable personal knowledge base for developers. It helps developers ship faster by centralizing personal and team context in one place' and is a Note-taking tool in the office & productivity category. There are more than 50 alternatives to acreom for a variety of platforms, including Mac, Windows, Linux, Web-based and iPhone apps. The best acreom alternative is Obsidian, which is free. Other great apps like acreom are Joplin, Logseq, Anytype and Notion.







Lightweight knowledge silo and networked-writing tool equipped with WYSIWYG Markdown editor and reader. Use it to organize writing, network thoughts and build a Second Brain on top of local plain text Markdown files.


Amplenote allows you to take notes and link those notes to functional task and contacts lists for seamless project management. It supports integration with Google and Outlook calendars to schedule tasks and allows e-mail integration as well.




PrivateNotes (formerly Exocortex) is an encrypted note-taking app designed for networked thought. It allows you to link ideas together, creating a web of interconnected notes that mimic how your mind works.



Tana's combination of simple concepts lets you build anything. Easily turn raw notes into tasks, bugs, follow-ups and more with Supertags. Everything in Tana is connected in a graph, so you can leave files and folders behind. Data flows to where it needs to be.




The note-taking app with robust Markdown editor, supporting macOS, Windows, and Linux. This app is designed to be the most convenient way to make notes in Markdown for your daily hacking.




Octarine is a fast, lightweight tool for writing, planning, and organizing — in Markdown that stays yours.





Provides end-to-end encrypted note-taking, file storage, and sketching with syncing across platforms, zero data collection, no personal info or passwords required, open-source code for transparency, and optional premium storage, all via native and CLI tools.




RightNote will help you get a grip on information overload. It is designed to be easy to use for the new-comer, but also provide advanced features once your notes start to accumulate. RightNote can store text notes, source code, spreadsheets and webpages.




A simple personal knowledge platform with a focus on clean Markdown files, simple queries and a journal.



