Developers　usually　copy　and　paste　code　during　software　development　that　results　in　similar　patches　of　code　spread　in　different　files.　Such　type　of　code　clones　cause　difficulty　in　making　changes　and　result　in　bugs.　In　this　study,　we　want　to　analyze　the　extent　of　the　use　of　code　cloning　in　the　development　of　mobile　applications　and　their　effect　on　post-release　bugs.　This　information　should　help　developers　and　designers　to　develop　and　design　better　applications　and　software　that　present　their　results　to　the　best　advantage.　©　2020　IEEE.