Agelong Tree is a program for building family trees, for storing and displaying information about people and events in their lives, for storing texts, photos, audios and videos connected to them. A user enters information about relatives, and Agelong Tree builds family trees or lineage lists for any chosen person. Go to page About Agelong Tree to see a brief list of program features.

Agelong Tree stores data only on the user's computer, no data are sent to the Internet. Data are placed in a *.at5 file. Photos and other documents originals are placed in a documents folder, it has the same name as the data file plus “.files”. When it is necessary to replace the data file, the documents folder must be replaced too.

Family tree data are precious. To prevent data loss, Agelong Tree automatically suggests creating an archived backup copy, it happens after a certain number of data modifications since the last backup copy. The backup zip archive contains a data file and a documents folder Создаётся архивный файл (zip-архив), в который записывается файл данных и папка документов со всем содержимым. Мы настоятельно рекомендуем хранить архивный файл вне компьютера, например на внешнем диске или в облачном хранилище.