FileSeek is a file search app that includes advanced functionality for power users. Developed by Binary Fortress Software
License: Free
regain is a search engine similar to web search engines like Google, with the difference that you don't search the web, but your own files and documents. Using regain you can search through large portions of data (several gigabytes!) in split seconds. Developed by Til Schneider and Thomas Tesche
License: Open Source
FileSeek is designed for fast and efficient file searching with a focus on customizable search options, while Regain emphasizes intelligent indexing and file organization, making it more suitable for users who prioritize cloud integration and file management.