The purpose of this study is to investigate students' opinions, students' usage of DynEd and their English academic success regarding the implementation of a computer assisted English language software, DynEd, being used via blended teaching method. A qualitative case study method was applied in the study which consisted of 87 6th-grade students of a public school of the province of Bursa. DynEd's Placement Test was conducted in order to determine English level of the students prior to the study. Following the test, a blended teaching method was applied to the students for three months. Subsequently, DynEd's Placement Test was reapplied to the students and the students' opinions on DynEd were taken with the open-ended questions. Following the study, the students' usage of DynEd was analyzed as a document analysis by using DynEd's Records Manager; their Placement Test results were analyzed descriptively; and the open-ended questions were analyzed using content analysis method. According to the findings obtained from open-ended questions, a significant proportion of the students who expressed their opinions showed a positive attitude (66.2%) towards DynEd.In general, the students found teacher support important and useful while using DynEd; they found it motivating being given award (45%) and star shaped sticker (34%) to those who made most progress in DynEd software. They stated that voice recording and repetition features of DynEd software are useful, while they found the pace of unit progression in the software slow. Furthermore, they expressed that DynEd enhances English speaking, reading and listening skills. On the other hand, they emphasized that the software should be designed more engaging. Among the interaction buttons on Dyned software interface, the students used the repeat button the most, used the microphone and headphone buttons less and similar with each other. The use of the software in this way shows that it is properly and effectively used. According to DynEd user guide; when the students' average duration of DynEd use (7 hours 19 minutes) was taken into consideration, it was determined that DynEd wasn't used sufficiently. In terms of Dyned Placement Test; although the students were more successful in the final test, that success difference was found not to be significant in accordance with DynEd user guide.