pfect

1)Which version can be supported? 2)when the app runs in background , the timer is slower than in foreground.

2

1) App can run on android 5.0, but stopped on android 4.3 . Which android version can be supported? How about IOS? 2) when the app runs in background ,...

How can I check if a mobile phone has installed the TTS ? Is there a method to check it ? Thanks.