Download of Logseq 0.10.15 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this free software for Mac is Logseq, Inc. The software belongs to Productivity Tools.
From the developer:
Logseq is a privacy-first, open-source knowledge base that works on top of local plain-text Markdown and Org-mode files. You can use it to write, organize and share your thoughts, keep your to-do list, and build your own digital garden. You can easily connect your ideas and thoughts with Logseq. Your knowledge graph grows just as your brain generates and connects neurons from new knowledge and ideas.
You may want to check out more Mac applications, such as TinyCal, myNotes or TaskMate, which might be similar to Logseq.