CompTIA A + studies on technology widely and varied, from traditional technology to modern technology, which is discovered nowadays because CompTIA A + does not focus on one vendor. Basic A + skills such as overcoming hardware, network and security problems in various types of devices in the IT world. However, A + certification is not much in demand because of cost constraints that are too expensive for vocational school children. The mobile application that is available to study CompTIA A + only focuses on questions for the exam. Ease of access to learning through mobile applications or commonly called mobile learning can reduce unemployment in Indonesia. Therefore, learning on certification CompTIA A + is created through the Android mobile learning application. The mobile learning of CompTIA A + certification is a system that simplify learning to take CompTIA A + certification tests at a lower cost and reduces time which is more effective because it can be accessed easily. It is hoped that vocational students can understand and make more levels of CompTIA A + graduates test.