GIAE is an Android-based application developed by Microabreu Lda. It is a free app that falls under the category of Education & Reference. GIAE offers a range of features to the school community, including meal acquisition, timetable consultation, access, absences, summaries, balance loading, school booklet, and evaluations. However, the activation of the GIAE-DM feature by the school establishment is mandatory for the app to function properly.

The app requires the activation of the GIAE-DM feature by the school establishment. If the feature is not activated yet, it is impossible to validate the user's tax identification number (NIF) in case there are no users with their NIF at the school establishment. The validation of the NIF is also mentioned in the validation form.