This is a font changer for oppo brand phone. It may change othermobile brand fonts. Support Mobile Phone: 1.Oppo Brand, OppoR9,Oppo F1S,Oppo R7,etc. 2.Mobile phone use Color OS system3.Partial Samsung Galaxy 4.HTC Sense 5.Phone support font style Ifyou have font problem,please emal us. If you love this font changer,please give us 5 stars.