Recommend sms-notifier for Android

Question

Android

Greetings, %username%!

It so happened that in our company alarm notifications are duplicated in mail and sms. I work the night shift, so it's extremely important for me not to miss an alarm in case I suddenly fall asleep with my face on the keyboard. I need an incoming SMS notification for android, which will ring until I read the incoming SMS or until the battery runs out. It is also desirable to be able to work on a schedule - to notify only at a specified time interval.
From what I found on GooglePlay, programs either do not work at all, or notifications are unstable, after the first notification the program crashes.
Please tell me a good sms-notifier.

Answer 1

They also advised Easy Reminder
From the pros:
It works stably
Free
There is the possibility of working on a schedule
From the minuses an outdated interface in the spirit of Android 2.3, but here it’s for taste and color

Answer 2

I have been successfully using Missed Message Flasher for this for a year now.

Answer 3

Just try to put a loud and very long melody on notifications.