Advancements in mobile technologies have accelerated mobile Augmented Reality (AR), and many applications have been developed and presented in online stores. This study aims to evaluate the accuracy of the AR model of the Solar System simulated in mobile AR applications located in the Google Play Store. The applications were examined in the store between 1 December 2020 and 1 January 2021. A criterion was developed and 23 applications were determined that met the criterion. The mobile AR applications were coded according to a coding scheme devoted to evaluating the content requirements of the Solar System. The results showed that the applications do not meet the requirements of the model of the Solar System. In addition, the applications are insufficient to accommodate the gravity, inertia, scale, and system formation that are the requirements of the teaching of the Solar System as a whole. The results also revealed that the applications have the potential to lead to similar misconceptions as mentioned in the literature. The results suggest that the applications should be developed or reviewed by specialists or teachers before using in science classrooms. In addition, research on AR should be more focused on the quality of mobile AR applications in online stores.