Locus Addon FieldNotes is a free Android application developed by Jarda Kvapil. It is a comprehensive tool for geocachers that extends the possibilities of working with the log notes. The program allows users to post selected logs online to GC.com or create fieldnotes text files for offline use.

One of the primary functions of this application is to edit log and favorite status. Users can also use templates, smiles, and sort and select logs. Additionally, the program allows users to log online via Locus main application without the need for authorization on geocaching.com server.

Locus Addon FieldNotes is a valuable addition to the Locus Map application, providing users with an efficient way to manage their geocaching logs. It is a must-have for all geocachers who want to keep track of their logs on the go.