Sri Maha Ganesha Pancharatnam was composed by Sri Adi Sankara Baghvad Pada in the 8th Century. It is a sloka addressing Lord Ganesha who is the destroyer of obstacles. As the name suggests it is a sloka containing five passages(Pancha) which are gems(Ratnam).
AshtottaraSataNamavali is the 108 names of Lord Ganesha.
This app contains the following stotras in English,Telugu

Ganesha Pancharatna
Ganesha Kavacham
Ganesha Managalashtakam
Ganesha Ashtottaram
Ganesha ShodasaNama Stotram
Ganesha Atharva Sheesham
Ganesha Bhujanga Prayatha Stotram
Ganesha Dwadasha Nama Stotram
Maha Ganapati Sahasranama Stotram