▶ Golden bell-shaped OnTimeAlarm used by elites https://bit.ly/2UGaQO6
▶ OnTimeAlarm - At every hour on time(on time, every 50 minutes, every 45 minutes, every 40 minutes, every 30 minutes), play a designated alarm, MP3 or speak memo, or a vibration. - Display the date and day of the week in the status bar, speak memo, support reservation and execution of table clock, battery alert, today's fortune.
▶ [Setting sequence(Left menu), very important] ① Access Permission Settings - [File, Save: Needed to set music on storage device to alarm sound] - [Phone: Needed to prevent alarm sound execution when a call is being received or busy] ② Ignore Battery Optimization Setting(Easy Set) - [Set to run normally, except battery optimization] - ★ (Additional/Important) Please manually "Set battery optimization exclusion" on Samsung phones. http://www.greatdragonkim.com/bbs/board.php?bo_table=apps&wr_id=64 ③ Exclude from the manufacturer's own power-saving features - ["Unmonitored apps(Samsung)"] - ["Power saving Exclusions app(LG)"] ④ Display over other apps Permission Setting - [Required for reservation and executing a table clock] ⑤ Xiaomi Phone Permission Setting - [Left menu usage, permission required]