  The objectives of this study are understanding the requirements of a CSA
education app, identifying the limitations of existing apps, and providing a
guideline for better app design. An electronic search across three major app
stores(Google Play, Apple, and Microsoft) is conducted and the selected apps
are rated by three independent raters. Total 191 apps are found and finally, 14
apps are selected for review based on defined inclusion and exclusion criteria.
An app rating scale for CSA education apps is devised by modifying existing
scales and used to evaluate the selected 14 apps. Our rating scale evaluates
essential features, criteria, and software quality characteristics that are
necessary for CSA education apps, and determined their effectiveness for
potential use as CSA education programs for children. The internal consistency
of the rating scale and the inter and intra-rater reliability among the raters
are also calculated. User comments from the app stores are collected and
analyzed to understand their expectations and views. After analyzing the
feasibility of reviewed apps, CSA app design considerations are proposed that
highlight game-based teaching approaches. Evaluation results showed that most
of the reviewed apps are not suitable for being used as CSA education programs.
While a few may be able to teach children and parents individually, only the
apps "Child Abuse Prevention" (rate 3.89 out of 5) and "Orbit Rescue" (rate
3.92 out of 5) could be deemed suitable for a school-based CSA education
program. However, all those apps need to be improved both their software
qualities and CSA-specific features for being considered as potential CSA
education programs. This study provides the necessary knowledge to developers
and individuals regarding essential features and software quality
characteristics for designing and developing CSA education apps.
