A free program for Android, by InfoRapid.
KnowledgeBase Builder Lite is a handy application for creating, maintaining, and searching a database of information. With it, you can easily manage any kind of text documents and web pages, even with their links and formatting. The application has a simple and intuitive user interface that allows you to add any content to the database with a few clicks.
You can easily manage the database by browsing the contents of the file. It also has a powerful search function that will let you search through all your knowledge base items and get back the results in seconds. And if you want to know the exact locations of the items in the database, the application also has a location function that you can use to find out the exact location of the item on the map.
And for a more convenient and organized database, you can also use the application to generate a mind map of your knowledge base. This way, you can organize your thoughts and ideas in a more efficient way.
