ARDNA: A Mobile App Based on Augmented Reality for Supporting Knowledge Exploration in Learning Scenarios Alessia Genovese (B ) , Federica Marino, Francesco Orciuoli, and Gennaro Zanfardino DISA-MIS, Universit´a Degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy {a.genovese28,f.marino43,g.zanfardino3}@studenti.unisa.it, forciuoli@unisa.it https://www.disa.unisa.it/ Abstract. Nowadays, Augmented Reality is broadly integrated across multiple environments, but the smart learning area is still polarized on visualizing articulated 3D models. Our proposal consists of a new app- roach to collect and organize notes, that takes full advantage of the AR platform providing an useful learning tool for students. Augmented Real- ity Data Navigation App (ARDNA) manages to display on screen notes, images and 3D graphs floating alongside traditional study material to support students during their learning acquisition process. The app has been implemented through the use of Unity and Vuforia Augmented Reality SDK. A minimum viable product has been handed to a small group of students and their experiences have been monitored and eval- uated; the results obtained support the founding statement of the app with measurable improvement for smarter studying. Keywords: Augmented reality · Technology enhanced learning · Mobile computing 1 Introduction and Motivations Given the widespread use of mobile technologies in diverse fields, it is increasingly common, especially for students, to have a great number of notes hard to merge, given that they are divided between physical media and digital contents. Augmented Reality (AR) is widely used in the educational field being an efficient and engaging support for students, helping them to better remember newly learned information [1]. The main advantage of AR in the context of AR Data Navigation App (ARDNA) is its ability to complement reality [2], enhancing the learning process on paper by adding digital information floating on the study material. c  Springer Nature Switzerland AG 2021 A. I. Cristea and C. Troussas (Eds.): ITS 2021, LNCS 12677, pp. 505–511, 2021. https://doi.org/10.1007/978-3-030-80421-3_55