The InfoRapid KnowledgeBase Builder is an excellent tool for Knowledge Management. You can save text documents and web pages with all formattings and links in your knowledge base and perform a full text search in it. Since every document is attached as a text note to a mindmap item, you can organize them perfectly in a large mindmap.
InfoRapid is the official developer of the app that can be found in the Productivity category. KnowledgeBase Builder Free has been downloaded and set up by over 100K users and its most recent update was released on Oct 10, 2020. The tool has been rated 4.2 on Google Play.
Samsung and Lenovo users install this application quite often. You can download the .apk installer of KnowledgeBase Builder Free 7.3.5 for free and check out users' reviews on Droid Informer. The file size doesn't exceed 16 MB and the app can be launched flawlessly on Android 4.4 and above. According to the antivirus report, the app is safe and secure.